5 speed t-case on an Auto

[20psimitsu]

Installed a standard transfer case on a 90 GSX auto and wanted to know if anyone has had any problems doing this. Also wanted to see if there were any downsides to doing this.

[Grimis]

if i remember the bolting pattern is diffrent and the gear ratio is also diffrent. I'll have to find my book to see for sure..

[Defiant]

Transfer cases have no gearing. They just take the power around a corner. If it'll bolt-up, you'll be fine. The issues are in the splines.

[Mr Peepers]

The A/T and M/T transfer cases show the same 24/22 ratio on VFAQ:
http://www.vfaq.com/mods/Trannies.html

I would say the only problem would be in 2g's, and mixing late model T-case(2gb) with an early model transmission(2ga) or vice-versa:
Transmission Videos (2g gear set identification)

VFAQ states nothing about this in the chart which concerns me a little.

I thought it should be brought up; although I don't have enough experience to say definitively one way or the other.

[99gst_racer]

Originally Posted by Defiant

Transfer cases have no gearing.

Of course they do. A ring gear and a pinion gear.

I believe the OP was mostly asking if the ratio between the two was any different on a A/T as apposed to a M/T.

[Grimis]

My bad, i was told what ever the trans, make sure to have the matching Tcase. but yeah the splines would be diff.. my bad..

[20psimitsu]

Didn't know if there was a difference between the two so, I figured that I'd ask. Thanks to all of ya'll for the info.

[Liquidpen]

They won t work.. The A/T and M/T case design is a little different.

[GDNF2ET]

The transfer case is in three parts; front, middle, rear...The middle section can be switched out and is the only VISUAL mounting difference between the auto and manual cases..The internals I know nothing for sure.....