So it looks like ive found something, my dif is a GB(based on the sticker from the dif), meaning I have a 5AT VLSD dif with a 4 bolt flange.

 

If you have a 4 bolt flange, any MT diff will work and no need to change the flange or driveshaft. I recommend having the differential opened up and checked to see if it has the AT or MT gear and differential, prior to ordering parts. I run the 3.9 rear gear with a Quaife differential and track about once a month. GET A TUNE, because chances are great that you are running lean.

 

the MT difs are super expensive at the moment and im one willing to put in work to save money, so would the only issue with the AT 3.692 difs be the 3 bolt flange/

 

i know acid jake had several in his garage at one time, havent talked to him in years though

 

ebay has one in houston for $294

https://www.ebay.com/itm/33427094342...3ABFBM4Ijj8MBf

 

Thats a 3.538 which I would still gain from but 3.6 would be ideal

 

its 4 times the price

https://www.ebay.com/itm/17502828450...hltVH&LH_BIN=1

 

which is why im wondering if I get a 3 bolt flange 3.6 could I just swap the flange and the rest should bolt up

 

If money is tight just get a tune, as Trav said. It will be good, usually the only cars that can easily swap pumpkins are MTs. From my understanding the flanges hold tension and the input shafts may be different, that leads to complete disassembly and the crush spacer needs to be replaced, sometimes several times. If you have no mechanical knowledge on this it's best to stay away. I'm a mechanic for a living and that is a job I'm not willing to do lol.

 

Also don't you lose some functionality when changing out FDs on AT cars?

 

I dont believe so unless its cruise control then perhaps

 

you'll need to remove and insert your AT axle stubs into your LSD pumpkin so they match your axle bolt pattern. As far as UpRev tuning in TX ima hand this off

 

Be sure to check your stubs before jamming it into the rear diff. Not all stubs are interchangeable.

 

is that just because lsds have unequal length stubs