Hi all,

I've been searching the Net for evidence of the rear diff. ratio. The problem is i have an LE 86 (Actually, its model year is 87). It is an automatic 2WD that had been converted to manual sometime before. I don't know if during that conversion, previous owner changed to rear diff or not OR the rear diff was changed somtime before because it was broken ? Who knows ? Because i don't have service history of the VAN.

I fell it is runs like a truck, especially with 1st and 2nd gear. And on highway it's 3000RPM at 100km/h. i want to change to a faster diff. I've been searching for gear ratio and found a lot of variations from 4.77, 4.3, 4.1 and 3.7. I guess 4.77/4.3 are for 4WD automatic/manual ?

I open my diff and found that it is currently 4.3. I want it faster so i changed to 3.7. Already done. The VAN runs smooth, faster on highway and the speedometter is correct again (the speedometter was slower before change from 4.3 to 3.7 diff). Now, it's 1600RPM at 100km/h. Wow, I'm happy with the result.

However, i'm still wonder what are the stock rear diff ratio for a 2WD manual/automatic VAN ? Are they same or different ? And are they different from 2WD to 4WD ?

I now 3.7 diff is used on Previa super charged.

Thank you & regards,
Tinh