Hey everyone, well i called a local junk yard for a new front assembley for my 92 toyota pickup and they ask me what gear ratio i have. i need to make 100% sure what mine is in the rear, going to cost over 350 for diff, axles, and manual hubs, my question is how to i go about finding the rear gear ratio? Thank You

 

post your vin number. im not sure how to tell on the vin but people on here do and there might even be a thread telling how to read the vin for the ratio? you most likely have 4.10's, maybe 4.56's

 

Here is a link on how to find out what gear ratio you have based on the door tag....

http://www.off-road.com/trucks-4x4/t...ion-18588.html

 

https://www.yotatech.com/forums/f116...osting-204178/

There is even a thread to show you how to swap it out........

 

If you want to know 100% sure what your gear ratio is, don't trust an online chart. Jack up one rear tire and have a buddy spin it 20 times (for an open diff) while you count the driveshaft revolutions. 41 revos = 4.10s, 45.6 revos = 4.56, etc...

When I was deciding what ratio I wanted to go with, I looked at 3 different online gear charts and each one told me I have a different ratio.

 

that method works but is kind of subjective.
Pull the third, count the ring gear teeth and divide by the pinion count.

the charts and vin #'s don't help much if someone has swapped in 4.88's to compensate for 33's and a chart says you got 4.10's

 

There's also the paint dot code... Which I trust even more than the spin-count method...

http://www.4crawler.com/4x4/4R_TechI...#Differentials

But there is no better way than removing the diff and counting the teeth.

 

Counting the teeth is definitely the most accurate way, but if you want to know right now without having to pull anything apart, I think the spin method will tell you what you need to know.

 

IMO,

1: Get the gear ratio code off the door jam...

2: Get two 14mm wrenches and drop the rear drive shaft. Take a small hammer and tap the flange to break it's grip. Move it to the side and you should see a paint dot on the pinion steak nut.

Compare the two.

3: If not paint dot is visible, it's HIGHLY likely the rear gears have been changed.
Do the spin-count method...

Compare all three...

4: Remove the diff and count the teeth...

 

Toyota's at salvage yards around me get picked clean...

Except for one thing! And that's IFS front diffs... They are too hard to get, and are not heavily used in the country they are going to.

From your post, I'm left to gather you need a front diff, shafts and hubs?

IMO you can get all for around $100 at a salvage yard, if you're not afraid to get a little dirty...

Matter of fact, that's what I would do if you were going to pay me to do it.

1, You'd never know the difference.

And 2, You'd get higher quality parts, set-up in a far higher quality way than a shop can do it.