motor & transmission mounts

There is confusion at the parts house. Does anyone know if motor/transmission mounts (toyota calls them front and rear?) are the same 4WD=2WD or if any truck or other units fit? All the rubber is gone from one of mine and the manual tranny flops up and down.
I've got some thumping if I work the gas on and off, shift hard etc. I need to look at some other stuff like the front dif mounts too as I get a noise (like the front drive shaft U clipping body member) if I drive with hubs locked - not there if actually in 4WD or if the hubs are unlocked. It is triggered by uneven road and bumps. I can change the pitch and loudness of the noise if not in 4WD and I start to pull on and then release the 4WD selector.
Any and all hints, tips or finger pointing will be greatly appreciated!!!
Cheers, and Happy New Year!

Just looked. The front drive shaft is really close to a control arm (?) and has worn through the rubber around the radiator line (?) heater line (?) rad cooler line(?) but doesn't seem to have touched the metal pipe. This sounds like the missing rubber in the tranny mount, or something, is letting the drive train sag.
Sure does.

There are different transmission mount configurations depending on year and what transmission you have. The part that breaks is almost always the engine mount on the driver's side. This is because the engine torque tends to pull it apart where-as the one on the passenger side gets pushed together. Toyota calls the engine mounts front insulators. The right and left sides are interchangeable. For 2nd generation vans (4y) these are Toyota part #12361-71020 (3y vans use a different part number and there are some possible exceptions on 86 vans).

If I remember right all the 4wd's only have the one transmission mount and that usually doesn't break. It's mounted on top in the middle. It's got a metal loop with rubber inside. The transmission basically hangs from this mount via a bolt that goes right through the middle. It is pretty much just there for vertical support (won't prevent rocking if you have a broken motor mount). Sometimes on removal the center support bolt gets stuck in the metal sleeve and can be a real PITA to remove, but other than that I've never had problems with these. The photo below was taken from the EPC for an 87 automatic 4wd. Tim

http://i8.photobucket.com/albums/a23...untauto4wd.jpg

Thanks Tim. I know I broke a new shock once that led to this noise before so I'll check those and the mounts. There has to be a reason for a sagging drive train. at least putting it in 4wd, for now, gets rid of the noise.

Driver's motor mount was replaced 6 weeks ago. I'll look again to see if it is broken again. The mount was aftermarket so I just ordered one from Titus-Will in Seattle. And I'll check the driver's shock. I'm thinking the missing rubber from the transmission mount is letting the whole drive train sag but maybe it's something else. Really my mechanic will do all this. I don't tackle drive train stuff. I suppose we had better look at the front axle/peanut mounts and stops while we are at it.
I wonder if the replacement shocks were too wimpy and letting stuff sag?
Lots of variables but a competent mechanic should be able to raise the drive train now that I know that is the problem.
I wish I was a competent mechanic. I DID do the fuel injectors and lots of other stuff so I'm not a complete buffoon!!

The torsion bar is maybe twisted. That let's the van sag I think. Next week we'll see if anything else is going on.

okay. the front left axle was chattering at the hub when the hubs were locked and the road rough. In 4WD it was okay if I was on the gas. The spacer that goes with the clip and keeps the axle in place was missing. Ooops. The ride height had to be lowered as the front drive shaft was hanging up as well (hence a thump changing gears and an 'unloading' thump sometimes at stops when I moved the gearshift.
All fixed now.:yes:

I wish I could say I did it but I didn't. I don't do drive train. My mechanic did it.
God bless him.

And Tim.

I know that the 2wd and 4wd have different trans mounts for sure, i guess because of the different tailshaft housings. i also remember it wasnt too difficult to change out the motor mounts.

I just pulled an engine from an 88 5 speed 4wd this weekend. See picture below:

http://i8.photobucket.com/albums/a23...s/IMG_0682.jpg

This is very, very common. Every van I've ever pulled an engine from has this condition. Even the used replacement engine (supposedly less than 80k miles) arrived with the driver's mount broken. Tim

Since the Toyota mounts always seem to be broken I decided to save some $$$ and try out aftermarket. I ordered the Beck/Arnley #104-1332 but it looks like I ended up with genuine Toyota. Check out the Toyota part number molded into the rubber. :)>:

http://i8.photobucket.com/albums/a23...e/IMG_1387.jpg

how easy is it to install the drivers side motor mount? what is the process? are 2wd mounts the same as 4wd? ROck auto does not see to have a distinction for 2wd/4wd

I've never actually replaced one on a van with the engine installed.........I have on other cars though. The van is a bit tight in this area due to the alternator and the cross-member. Basically you'll need to take all the bolts out, then jack the engine until it's high enough for the old mount to slip out & the new to slip in. You might want to have a good vocabulary of swear words ready before you start :LOL2:.

yah, i have done this on my old volvo. i pretty much used all my vocabulary on that on. I think i may have sworn in a few languages...

Rawb - This is easier to do than it looks.
Pull the over flow tank and the alternator, undo the big nut with the weight of the engine on it and leave the nut on a few turns.
Use your scissor jack with a block of wood on the oil pan flange, a 2x4 on end fits nicely between the sway bar and the crossmember.

Once you have the weight of the engine supported on the jack, loosen the upper bracket mounting bolts (4) and remove the mount to frame bolts, then lift the engine until it is clear, pull the upper bracket bolts and remove it as an assembly.
Install the new mount onto the bracket, leave the big nut loose enough to articulate the two, it eases getting it back in.
Oh, I had to lift the engine some more in order to get the new mount in.
Install the "new" assembly, put all the bolts (6) in but leave them loose a couple of turns and drop the engine back down.
It will likely all line up beautifully without any grief.
Bolt everything back up and torque the big nut before reinstalling the alternator.
When you do the right side, you have to pull the fuel filter out of the way, then it is very easy.
It is worth doing both sides, while it is the LS mount that separates, they both get compressed.

Mine were over 5/16in shorter than the new ones and I have a lot more clearance in all the right places now.

BB

are the mounts on the 2wd and 4wd the same? I dont see any differentiation in any of the parts catalogs

Quote:

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Originally Posted by timsrv

For 2nd generation vans (4y) these are Toyota part #12361-71020 (3y vans use a different part number and there are some possible exceptions on 86 vans).

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For aftermarket there's Anchor #9029 & Beck Arnley #1041332

oh, thanks! Missed that

I have done a lot of maintenance work to my van this year. After installing new motor mounts the van and steering wheel shake worse than before. Any recommendations?

Fixed the problem. One was moved sideways

Hi!

I've got an 87 4x4 (5-speed) and when I accelerate hard from a dead stop I get a strong rumble/vibration under the driver's seat. Feels like the valve cover vibrating against the underside of driver side access hatch. I'm thinking it's the left motor mount but was wondering if there might be something else I should check before replacing. Thanks!

U-joints can cause weird vibrations when they start to seize up but usually you'll feel that through the floor "from behind" not "underneath".

Engine mounts are a pretty safe bet at this point, given the location/sensation, not too mention being 28yrs old.
I doubt you would be disappointed if you replaced them.
Don't forget to check the rear mount (trans) while you're in there.
BB

Thanks BB! I decided to go for broke and replace them last night. I managed the get the left side done and the old mount was completely separated and compressed about a 1/2" compared to the replacement. All-in-all, not as difficult as I expected but it required a fair amount of contorting around the driveshaft. I was definitely cursing the fact that I have 4x4. I will tackle the right side tonight.

Anyone know where to find a replacement rear 4WD mount? or just the round rubber part (insulator? bushing?) for the mount? Mine's pretty cracked. I ordered what rock auto sells as a rear mount without checking mine out first (like a dolt) and it's a rectangular thing that must be for RWD's.

I'm trying to glean the part number from the diagram Tim posted, but can't quite figure it out.
12321?
12371?

Y'all think I could find some other Toyota bushing that would squeeze in there if I saw the old rubber out?
Just guessing here. :?:

That post I made was showing the EPC page for an 87 4wd automatic. Others may also use that mount. It's Toyota #12303-54010. Tim

Searching these threads for the rubber part ,Jus like Tim said above , mines tearin up on the way out . I cant seam to find a picture of it associated with the part number , 87 4wd 5spd .

Quote:

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Originally Posted by Maxisback

Searching these threads for the rubber part ,Jus like Tim said above , mines tearin up on the way out . I cant seam to find a picture of it associated with the part number , 87 4wd 5spd .

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Yeah I know what you mean, the picture is often different and seems to show a big steel bracket (which doesn't look like the bracket the mount hangs from under the van either). That's the part number though. It's stamped on my old one. I "ordered" one from a toyota parts dealer that supposedly has one, but I expect to hear back soon that it's actually out of stock

Frustratingly, a lot of Chinese manufacturers advertise that they can make exactly that part (with a picture), but there's a minimum order to make it worth it.

Here the minimum is only 10. Y'all wanna pool up and all go in on a batch of tranny mounts? :LOL2:
http://www.suspensioncontrolarm.com/...ce-engine.html

The older these vans get, we might have to get more parts this way!

It says the minimum order is ten ?? if so, how much will it be per-piece ?? if reasonable I'll get in on the first order--

I may also take 2 or 3 if the price is right.

I sent an email to ask about the price. I'll post here if they get back to me.

Arghhyhhhh , my tranny is out , sitting on the ground , and I cant find that rear mount anywhere , anybody might have one used? I live on top a mountain and winter is here lol , already lost work over this .

Will be ready to re-install the trusty 4Y back into my 86 LE. I forgot that when it was removed we found this transmission mount that I could not find anywhere. None of my docks nor TVT has any threads on this.
Can anyone point me in the right direction for a part number or parts outlet that may have this?

Thank you

I wasn't able to locate a replacement for mine either. I bought a similar round shapped motor mount from some front wheel drive. AutoZone let me go back and open boxes until I found one that would work. I the cut the old mount off the trans mounting bracket, and welded the new mount on. I went slow to make sure I didn't burn the rubber in the new mount. That's been going strong for 10 years.

Thanks for the comeback. Wow, couldn't find it huh?

So are you saying you cut off the donut and the steel that surround it and welded on the replacement to the same mount?

Were you are all concerned that the elevation of the back of the transmission was not in line with the meat ball?

I just found this on eBay:

https://rover.ebay.com/rover/0/0/0?m...2F122571705306

But the pics aren't quite right?

Yeah, I cut the round part off and welded the new round part on. When I made mine, I made sure the dimensions were right for the replacement so everything was aligned. I spent a long while opening motor mounts at AutoZone until I found the right one. I should have made note of the part number, but I didn't.

Someone else might have more information regarding this. I made one because it was easier than searching and waiting.

Yea, I see what you mean. I did find this but again I am not sure of the dims.

I may inquire to see if the dims are available then compare it to the old one.

Crap, I thought this would be a no brainer.

Bummer

MT
https://www.amazon.com/gp/product/B0...KIKX0DER&psc=1

Quote:

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Originally Posted by MyToy

Will be ready to re-install the trusty 4Y back into my 86 LE. I forgot that when it was removed we found this transmission mount that I could not find anywhere. None of my docks nor TVT has any threads on this.
Can anyone point me in the right direction for a part number or parts outlet that may have this?

Thank you

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https://www.thewrenchmonkey.ca/produ...westar/em5749/

I just went through all this , if you can find my thread on it , somebody in canada sent me a link for a new one , I finaly found a good used one , meanwhile I have a partsvan sitting in a farmers feild that has one , but I cant get to it .

Thanks for the link nikifix but this ones mounting bolts look very wide to fit the stock mount. But thanks for the help for sure.

Max, thanks for the the thought on the used one. No worries, the one I have is not really bad, the rubber is cracked in three places but it has no problem holding up the trans. Just that now that the engine is almost done and the transmission is out is the time to change this puppy. I noticed before the engine came out that when I drive the van in over riding conditions all is well however when I accelerate, like to pass another car, I hear this low frequency hum from under the middle of the van. I thought maybe it is a muffler issue. But when I dropped the trans I saw this and thought maybe this is the problem.
When I had a new LE back in 86 I don't remember this low hum noise.

So that is why I am pushing for a new one. So you have a thread from some guy in Canada huh?
Man I tore appart TVT on google search and could not find much on this. I will look more and maybe I can find it. Will keep you posted. At least I know I am not the only one:LOL2:

Thanks again to all.

MT

I may have found the OEM for this part. They are researching my vin and will respond some time this week.
Will keep you posted.

MT

I've also been hunting for a replacement. I wound up visiting my local rubber company and had them fit a new piece of rubber to the old mount. Next, I'll drill out the rubber, fit the metal sleeve for the bolt on the inside, and hopefully be good to go.

I'm considering putting a few more holes in around the central bolt hole to provide a bit more give, almost like creating spokes.

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