350 or 400??

[Murphy]

How do I determine which automatic is installed, the buildsheet?? Or numbering on the tranny itself??

[Sam (Bones)]

what is currently in it or

what it came with?

 

does the trans pan look like the state of Texas (TH400) or a square with a missing a corner? (TH350)

[Murphy]

It's a TH350, square pan. Looks like I've got a leak where the speedocable attaches....Does that collar just spin off?

Next question, where are the markings on the rearend (differential)so I can determine exactly what I have?

[overdrive]

My trans was leaking from the same spot. Channel locks will remove the nut with a twist. The speedometer driven gear inside is plastic and mine had wear on the shaft and I had to replace it. The housing it's in has an o-rings on the inside and outside that you'll want to replace.

 

The code for the rear axle is stamped on the front of the passenger axle housing, just outboard of the differential. Sam has a good picture that he may post for you or give you a link.

 

Dan

[overdrive]

I found it: axle ID

 

Dan

[Sam (Bones)]

thanks I'm on another computer and couldn't get it

[Murphy]

Thanks Guys...........Great help! KDG 169 2 What does the KD mean?

[Murphy]

Also, the build sheet states "GW5 273 Ratio Axle" Thanks again.......

[cny first gen 71]

When you say its a square pan do you mean square with the one corner off or square? this is a 3 speed auto right. Some did come with powerglide which was a 2 speed auto. Just want to make sure you have the right info.

[Murphy]

Yea, it's a 3 speed auto...