3CT Townace REAR DIFF RATIO question ...4.55 vs 4.11

[karachaffee]

Hi All,
My 3CT automatic 4WD 1993 Townace has a 4.55 rear end. Has anyone put a 4.11 rear end unit into the diff? if so , what did it accomplish?
It strikes me that if one is mainly driving highways and byways that a little taller rear end might put you closer to peak torque for the diesel...
Thank you,
Kara

[originalkwyjibo]

Gear ratios are a delicate balance particularly for a relatively underpowered vehicle. Too high a ratio and it struggles to get going and can decrease your overall fuel mileage , too low and it's screaming on the highway and can decreae your fuel mileage unless you slow down. The bigger issue though is going to be parts availabilty and cost. Since it is s 4WD, in order to re-gear you will have to do both front and rear differentials(cost). The front ring gear in these seems to not be very common(availability). There are some online gear calculators that you can play with or call a gear supply house(I have used Randys Ring and Pinion in the past) and pick their brain but you need to be very specific that this is a small low power diesel in a not very aerodynamic brick. I believe the USDM 4WD 5 spds came with a 4.30 ratio and the 4WD autos with a 4.78.

[nthimme]

Hi all,
I appologize if this can be found somewhere else on the website (new here) but I am a new owner of a 90 liteace/townace european 4wd and im looking for shock recomendations. Any help?