grotto107

Which year and model differentials will bolt into my 85 gsl se with no mods? I've found a ton if info here about gear ratios ect. But can't seem to find this.
Thanks guys.

rxtasy3

iTrader: (2)

any from an fb will "bolt in", but since the s3(84-85) has the big axles, that's the yrs u'll have to use. it's also limited slip so unless u go with non LSD, u can use either from a gsl or gsl-se. not sure if there's a difference in the ratios between the two tho.

mhr650

A Kia Sportage front differential will also bolt in, but it will be open unless you swap the limited slip from your existing housing…………..

grotto107

Thanks guys! I've located a Sportage and will pull the front differential tomorrow.

grotto107

The Kia sportage doesn't fit

Sh00bs

iTrader: (8)

i beg to differ.

why dont you think so? any pics?

grotto107

My mechanic said so.I'm 7 hours away from the car.i'll get him to take some pics if he still has It.

Sh00bs

iTrader: (8)

no offense, but have your mechanic get on the forum or fb and check out the DIY's for it. i know a few people with much success and love the gearing

plentymoon

Just because it bolts in doesnt mean it fits but anythings worth a shot if its keep an rx7 going.

grotto107

We are now assuming that the junk yard sent us the wrong rear end.we are getting another. We ordered a front differential for a kia sportage 4x4.i assume all years are the same.

grotto107

[QUOsomeone helpSh00bs;11841826]no offense, but have your mechanic get on the forum or fb and check out the DIY's for it. i know a few people with much success and love the gearing[/QUOTE]

I searched the fb archives and found 5 or 6 threads on an se rear end. A great swap chart for all rx7's, a toyota swap, and ring and pinion kia swaps. Can't seem to find the kia differential swap threads though.
Can someone help me out?

lduley

iTrader: (1)

Ya but his mechanic is probably just that, a mechanic, if it isn't made specifically for the vehicle, he won't put it on due to safety issues, most mechanics won't take that risk

grotto107

I agree. But this guy is a self-employed buddy of mine and he has no problem with the swap

craaaazzy

iTrader: (9)

i did a quick google for you so now u have some reading (I'm not familiar myself so can't offer any help other than this): https://www.google.com/search?q=kia+...utf-8&oe=utf-8

Rotary Powah

iTrader: (1)

If I recall right, it isn't any sportage front diff that fits but a 90's model, something like 94-99

EDIT: After some searching (because I was curious myself) it is the front diff from a 95-97 sportage that fits because those are 26 spline (like the late 83-85 "big axle"), and 98-05 sportages have 28 spline axles. This might be your problem.

grotto107

That would explain it. Since the answer that I got didn't say that it had to be a specific year.we assumed any year would bolt up.

grotto107

Thanks man!

Rotary Powah

iTrader: (1)

I edited my post, that was the info I gathered from these threads:

https://www.rx7club.com/1st-gen-arch...pinion-507123/

https://www.rx7club.com/1st-gen-arch...s-pics-667307/

Good luck man! I had some diff issues myself back when I swapped to an 83 gsl rear end and I was convinced it was small axle, turns out it was a late 83 big axle. Much confusion was had until I figured that out.