Need new front shocks '87 4wd

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Originally Posted by mistershmi

What exactly did you have to do to get the Durango shocks to fit? Maybe you could explain the mod? Do you have a part number? I have cranked torsions and the shocks on there now bounce me out of my seat over bumps. One of them appears to be leaking as well. If the Durango front shocks are as good as you say I'd love to do that to my van instead of the Gabriel ones

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if you crank the torsion bars up too high, you get more bounce and they will break.

Unfortunately the other Van site is dead and that is where i got the part number for the Durango shock replacement. All you have to do once you have the shock is cut off the lower mount. So i bought the 2wd model and cut the lower mount off. looks like the 4wd model has the correct mounting for the Van.

https://www.tirerack.com/suspension/...0&autoModClar=

Double check the spec for suspended weight for this shock before purchasing. It has been over 5 years since i did this mod. I dont even have a van anymore; someone stole it and set it on fire.

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Originally Posted by RawbSpear

if you crank the torsion bars up too high, you get more bounce and they will break.

Unfortunately the other Van site is dead and that is where i got the part number for the Durango shock replacement. All you have to do once you have the shock is cut off the lower mount. So i bought the 2wd model and cut the lower mount off. looks like the 4wd model has the correct mounting for the Van.

https://www.tirerack.com/suspension/...0&autoModClar=

Double check the spec for suspended weight for this shock before purchasing. It has been over 5 years since i did this mod. I dont even have a van anymore; someone stole it and set it on fire.

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what kind of monster steals a Van and sets it on fire? that sucks. sorry to hear about it.

looks like the part number from your tire rack link for the 4WD front shock is 24-185233. i did a quick google search but couldn't find the specs for suspended weight. Maybe i can call and ask bilstein directly....These are the specs i did find from another site:

Bilstein (24-185233) 4600 Series shock absorber
Collapsed length (inches): 9.52
Extended length (inches): 14.49
Travel (inches): 4.97
Upper mount: Stem
Lower mount: Eye 12.1mm

Any update? Did you install bilstein shocks on the front? I'm interested because I know that they are really good in reducing the bouncing caused by road imperfections.

i bought them about a month ago but haven't put them in yet - I'm going to be doing the upper and lower ball joints at the same time and theres been a couple other projects i need to get done first. from what I've read they should be a direct fit though - ill post an update once i get them in! hopefully within the next couple weeks!

Sounds like a good plan. Keep us posted.

im in the market for new shocks front and rear, but im a little confused about needing longer travel shocks if i decide i want to jack it up a little....isnt the a-arm still only traveling up or down as far as the bump stops will allow?

the rear i can understand maybe needing a longer shock. what are people using in the rear?

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Originally Posted by boogieman

isnt the a-arm still only traveling up or down as far as the bump stops will allow?

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You are correct. When I asked this question it was late and I had been reading an article about lifting straight axle trucks. I meant to clarify that in my subsequent post regarding my installation experience but forgot. On that note, I am still pleased with my Gabriel's although they are on my newer van which is not lifted.

Someone correct me if I'm wrong, but in the front I don't think you need longer travel shocks if you are just cranking the torsion bars for a little lift.

LightBlueToy, I think you're right.

I'm installing the Durango Bilstein shocks in the front right now. Had to use the angle grinder to narrow down the lower mount but that only took about 30 mins of grinding/testing fit till I got it narrow enough to slide into the lower mount.

Does anyone know the part numbers for the front lower shock mount bolt/washer/nut? mine were rusted and seized so I had to really hit it with the impact wrench. I tried re-using but they were stripped badly on reassembly.

Thanks for this info, are you saying that the 4wd Bilstein 4600's have the correct mounting for the 4WD Vans and that they don't need any mods?

Can you recommend upgrades for the rear suspension too, or is there an existing thread you can steer me to?

I appreciate the help!

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Originally Posted by RawbSpear

if you crank the torsion bars up too high, you get more bounce and they will break.

Unfortunately the other Van site is dead and that is where i got the part number for the Durango shock replacement. All you have to do once you have the shock is cut off the lower mount. So i bought the 2wd model and cut the lower mount off. looks like the 4wd model has the correct mounting for the Van.

https://www.tirerack.com/suspension/...0&autoModClar=

Double check the spec for suspended weight for this shock before purchasing. It has been over 5 years since i did this mod. I dont even have a van anymore; someone stole it and set it on fire.

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Originally Posted by Earthlin

Thanks for this info, are you saying that the 4wd Bilstein 4600's have the correct mounting for the 4WD Vans and that they don't need any mods?

Can you recommend upgrades for the rear suspension too, or is there an existing thread you can steer me to?

I appreciate the help!

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In the front I used the 4wd Bilstein durango shocks. torsions are cranked as well. Finally installed the shocks about 2 weeks ago. Huge improvement. Rides more like my toyota pickup - a lot less bounce but definitely more stiff and harsh over bumps. Very happy with it overall however. Only thing i had to do was grind down the sleeve on the bottom mount of the shock itself with an angle grinder about half inch on each side. added about 30 mins to the job. very easy to do. hardest part was getting the shock compressed and sliding it in (since i was doing it all myself) but overall was a pretty easy job.

here is the thread on rear suspension.

I removed my mr gasket spacers and did the aerostar springs and tacoma Bilstein shocks in the rear thats discussed in that thread. its been awesome so far. much better than spacers. pretty easy job as well. you'll use an angle grinder to remove to top 2 coils. its too long by default. even with the cut coils it takes some work getting it slipped back in. that was the hardest part and i enlisted a neighbors help for that. again, not terribly difficult overall.

IMHO these are the best lift mods you can easily and cheaply do. Anything beyond this will require fabrication, cutting the front floor pan up, modifying front geometry, etc etc. Gets far more complicated quickly. VanCo is a member on here that did significant modification to fit 31's and its awesome, but way more work than i have the time and ability for :LOL2:


btw, if you use the search function there are several threads on this topic.

Some folks have not had success with the Aerostar springs. Do you know The year & Trim model you got your rear springs from.

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Originally Posted by coronan

Some folks have not had success with the Aerostar springs. Do you know The year & Trim model you got your rear springs from.

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I bought new aftermarket aerostar springs, Moog CC845

i know there are others in the forum that used that Moog spring without issue. Don't know if the van year or 2wd vs 4wd matters but i wouldn't think so. For reference mine is an 87 4x4

EDIT: a quick search reveals "Ford Aerostar 90-97 L6 4.0L" as the vehicle for this part number. trim level doesn't appear to matter from the compatibility list.

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Originally Posted by mistershmi

In the front I used the 4wd Bilstein durango shocks. torsions are cranked as well. Finally installed the shocks about 2 weeks ago. Huge improvement. Rides more like my toyota pickup - a lot less bounce but definitely more stiff and harsh over bumps. Very happy with it overall however. Only thing i had to do was grind down the sleeve on the bottom mount of the shock itself with an angle grinder about half inch on each side. added about 30 mins to the job. very easy to do. hardest part was getting the shock compressed and sliding it in (since i was doing it all myself) but overall was a pretty easy job.

here is the thread on rear suspension.

I removed my mr gasket spacers and did the aerostar springs and tacoma Bilstein shocks in the rear thats discussed in that thread. its been awesome so far. much better than spacers. pretty easy job as well. you'll use an angle grinder to remove to top 2 coils. its too long by default. even with the cut coils it takes some work getting it slipped back in. that was the hardest part and i enlisted a neighbors help for that. again, not terribly difficult overall.

IMHO these are the best lift mods you can easily and cheaply do. Anything beyond this will require fabrication, cutting the front floor pan up, modifying front geometry, etc etc. Gets far more complicated quickly. VanCo is a member on here that did significant modification to fit 31's and its awesome, but way more work than i have the time and ability for :LOL2:


btw, if you use the search function there are several threads on this topic.

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Thanks for this! Hoping to do it in the next few weeks and will report back once it's installed.

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Originally Posted by mistershmi

... Rides more like my toyota pickup - a lot less bounce but definitely more stiff and harsh over bumps. Very happy with it overall however...

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Besides the bounce, I feel every tiny little crack and bump in the road right now and the van rattles alot. Are you saying that your Bilsteins setup with the Aerostar springs only minimizes bounce and that it will still have a stiff and harsh feel on the little stuff?

Thanks again for all your input.

Yeah, its still pretty stiff and harsh over bumps, but i honestly dont notice or mind it too much. it feels just like the ride i had in my 1993 toyota pickup. i would have no qualms recommending this setup, especially if you own a 4WD. i love it so far.

I just got done installing the aerostar springs, the tacoma bilstien shocks in the back. I cranked the tortion bars and my Durango bilstiens came in the mail today. I'll finish the front this weekend.

I had to cut about 2 coils from the top of the spring and a little from the pigtail on the bottom to get the right shape for it to seat well. I used the original rubber insulators on the top and bought some new generic insulators on the bottom.

I know my original shocks in the front are dead so I'm excited to see how the ride improves with the shocks in the front. I think it handles better with new shocks and springs in the back even though it's taller. The old stuff was so shot.

Attachment 6124Attachment 6123

Quote:

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Originally Posted by mistershmi

I bought new aftermarket aerostar springs, Moog CC845

i know there are others in the forum that used that Moog spring without issue. Don't know if the van year or 2wd vs 4wd matters but i wouldn't think so. For reference mine is an 87 4x4

EDIT: a quick search reveals "Ford Aerostar 90-97 L6 4.0L" as the vehicle for this part number. trim level doesn't appear to matter from the compatibility list.

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I got the Bilsteins installed in the front today and I feel a major improvement. I'm about to do the Moog springs but I couldn't tell from your posts and the other rear suspension thread if I was going to get a lift from them and need to reposition the brake proportioning valve. I'm tempted to cut them to the same length as the stock springs but I'm not confident they will have the same resting sag position. Any thoughts or input on this?

Thanks,

Peter

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Originally Posted by Earthlin

I got the Bilsteins installed in the front today and I feel a major improvement. I'm about to do the Moog springs but I couldn't tell from your posts and the other rear suspension thread if I was going to get a lift from them and need to reposition the brake proportioning valve. I'm tempted to cut them to the same length as the stock springs but I'm not confident they will have the same resting sag position. Any thoughts or input on this?

Thanks,

Peter

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I would assume cutting them to the same length would give about the same height as stock. I cut 2 coils from the top and it sits (with no load) about 2-2.5" higher than stock. It was a beast to get the springs in (make sure to have a helper and a good pry bar) but I am very happy with the new height and additional gained travel off road that you wouldn't get if using spacers.

I haven't adjusted my brake proportioning valve yet, but it still brakes fine. Ill get around to creating a little bracket to adjust it 2 inches higher to compensate for the lift eventually. There are a few threads mentioning this if you look around. Its very easy to do. See the last post on this thread for an example one that Coronan made

The post by TheCrippler showing his van with these mods gives a very good representation of what the lift will look like afterward.

I got the front bilstiens in over the weekend. What a difference. The van handles better and rides smoother than it ever has.

The front shocks weren't hard but did require a little grinding to narrow the bottom mounts. I had fun using the angle grinder in the bathroom of my apartment while my wife held the shock with an oven mit :) i also struggled a little gettingthe shock on the vehicle cause it was a little long. I ended up compressing the shock all the way and using some nylon strapping to hold it in the compressed state while i bolted it on.

The brakes suck after the lift. I really noticed a difference. I'm going to make that bracket for the proportioning valve tonight.

The rear springs were really hard to install in the back. I had to get some really good spring compressors and a friend to help. And it barely went on. We almost disconnected all the brakes etc to drop that rear end even father but managed to muscle them on in the end

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Originally Posted by TheCrippler

I got the front bilstiens in over the weekend. What a difference. The van handles better and rides smoother than it ever has.

The front shocks weren't hard but did require a little grinding to narrow the bottom mounts. I had fun using the angle grinder in the bathroom of my apartment while my wife held the shock with an oven mit :) i also struggled a little gettingthe shock on the vehicle cause it was a little long. I ended up compressing the shock all the way and using some nylon strapping to hold it in the compressed state while i bolted it on.

The brakes suck after the lift. I really noticed a difference. I'm going to make that bracket for the proportioning valve tonight.

The rear springs were really hard to install in the back. I had to get some really good spring compressors and a friend to help. And it barely went on. We almost disconnected all the brakes etc to drop that rear end even father but managed to muscle them on in the end

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that is pretty much identical to my experience :dance2:

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Originally Posted by mistershmi

that is pretty much identical to my experience :dance2:

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Hopefully that included the bathroom angle grinder experience!

Does anyone know the actual specs for the front shocks? I’m wanting to upgrade to some higher quality off-road shocks and need the stock shock info to do so. My goal is to have them be plug and play so to speak. There are tons of off-road companies building shocks and I want something with better performance than what’s available over the counter. Thanks for any help 👍🏻👍🏻

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Originally Posted by hunziker87

Does anyone know the actual specs for the front shocks? I’m wanting to upgrade to some higher quality off-road shocks and need the stock shock info to do so. My goal is to have them be plug and play so to speak. There are tons of off-road companies building shocks and I want something with better performance than what’s available over the counter. Thanks for any help 👍🏻👍🏻

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a member here, coronan told me he had some Rancho shocks up front. Another member VanCo has some skyjackers up front. im not sure what the part numbers are on those, but they both have told me they like them. maybe they can chime in with a part number and information about that ride.

It looks like the Gabriel ProGuard 61545 is discontinued. If I wanted to order a pair of the KYB shocks from a Durango (for the front of my '87 4WD) which part number am I looking for? Or which year Durango and is it the 2wd model? Thanks.

The Toyotas OEM front are KYB's made, SK25 part#48500-28090. Fully compressed: 265 mm or ~10 5/8", fully extended: 390 mm or ~15 5/8".
I purchased the Durango one based on researching this site, (too much to digest).
I got the Bilstein 4600 series for the 2000 Durango 4x4 part# 24-185233.
Turns out they are made for a 2" lift. I do not know about the KYB, I assume it will be the same, be aware of that. I didn't see it noted anywhere so I think it is worth mentioning here.
They will fit at normal ride height/spring, but they are pre-compressed. So I got the Daystar KT09100BK coil spacer for the rear and will crank the front bars to lift the van an extra 1.25"(it came with the Mr Gasket 3/4 inch spacer). Not what I really wanted.:(:
Shopping for suspension parts is very frustrating,:wall: technical support is inexistant beyond "what the computer says", and never ever mention that the part is not for the intended vehicle, they will smell the lawyers and not even want to talk to you.

I thought there would there still be an advantage to running the larger Durango KYB shocks, even if it wasn't lifted.

There are rubber bump stops mounted to the control arms, those are supposed to limit the travel of the suspension, not the shocks. In pre-compressing the shock you run the risk to let the shock bottom out before the control arm reaches full travel and stops against a rubber bumper. The piston then absorbes the shock load, something it is not designed to do. If that makes sens :dizzy:

That being said, yes I would agree that running the over sized shock is better than running these:

Three days like that, are they dead?:roflmao:
Attachment 7005

Thanks for the info. I'll give them a try.

Can anyone comment with the correct part number for Durango Bilsteins for the front?

series 4600
Attachment 7021

Thanks Carbonized, I saw you mentioned 4600 series already but I was confused if they didn't work well for you? If my torsion bars are cranked up some, the 4600's should work well? And also you had to grind the mounts on these?

Thanks, my head was spinning reading through the 4 pages of this thread trying to figure out which ones to get

The van suspension travel from full compression to full droop is 4", the bilsten travel is ~ 5" and need to be compressed somewhat to fit . Lots of people are using the Durango mod without complaints that we know of. If your head is spinning after one thread imagine what it will do after going thru all the related threads :rol: I was :cnfsd: :dizzy: :shock::confused::wall:.


Yes you do have to narrow the lower mount of the shock by 6.5 millimeters. I used an angle grinder and patience. Grind a few seconds then dip the chock mount in water to prevent the rubber bushing from melting, mesure, and repeat on the other side until you have removed over 3 millimeters from each sides.

Attachment 7025

Attachment 7022

Attachment 7023

Attachment 7024

so helpful as usual carbonized, thanks

Nice insights.

Got them in, pretty easy job altogether

Thanks again for the pointers
Attachment 7117

Let us know how they feel. I havent driven mine yet as I am rebuilding the whole front and rear suspension, and a lots of other things.

I installed the Bilsteins a few months back to replace the pretty much brand new KYB's that came with my van. With the KYB's it was obvious that the front was underdamped, and over big bumps the front end was almost uncontrollable. With the Bilsteins installed the difference was night and day. The front is much more controlled over large bumps and the overall handling is greatly improved. A must do upgrade IMO!

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Originally Posted by Duke

I installed the Bilsteins a few months back to replace the pretty much brand new KYB's that came with my van. With the KYB's it was obvious that the front was underdamped, and over big bumps the front end was almost uncontrollable. With the Bilsteins installed the difference was night and day. The front is much more controlled over large bumps and the overall handling is greatly improved. A must do upgrade IMO!

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Where the torsion bars cranked all the way with the KYB's? How much lift are you set at now?