Replacing Trans Pan

Hello, I would very much appreciate any and all responses because I'm sure there are some various thoughts out there.

I'm going to replace the transmission pan on my 1972 Buick Gran Sport Stg1.

My questions are:

1. I will be using a torque wrench to tighten the pan bolts, but do you also use a bolt tightening sequence?

2. Do you install the gasket with a sealer or dry? If a sealer, do you put it on both sides? Do you just use a small amount?

Thanks in advance. Mike

 

I dont think there is a sequence i crisscross from side to side back to front until it all tight,i use a little on the pan just to hold the gasket on.If you dont overtighten it you shouldn't need rtv on anything else.If using the stock pan make sure the pan inst distorted around the bolt holes. I don't know the exact torque spec but it should be between 8-12 ft pounds i have a 1/4 inch torque wrench works really good for that delicate stuff.12 inch pounds for every 1ft pounds

 

Make sure the bolt holes in the pan aren't mushroomed up from someone previously over tightening them. If so, use the rounded end of a ballpeen hammer while holding the pan rail on the edge of a work bench. I just run the bolts up finger tight, then use an alternating sides sequence ( 2 bolts at a time) and torque them in 3 or 4 steps using an inch/lb torque wrench. I believe I would torque them somewhere between 100 to 120 inch/lbs. Its easy to over tighten the bolts and cause a leak. Hope this helps you out, good luck, and have happy holiday!!!!

Later,
Jude

 

Thanks Gentlemen! Does anybody use an additive or conditioner in the fluid? Or, just run with straight DEX III?

 

I use ATP filter kits. The pan gasket has smaller holes at the four corners so you can lay out the gasket on the pan and put in the bolts and raise it up and get the four bolts started. No adhesive , rtv, etc. needed. Torque to 120 in. lbs.
They also make an additive , AT-202, which makes the fluid semi-synthetic when used with Dexron/Mercon universal fluid. Replaces the sperm whale oil that was outlawed in the 1960's. Works great.:3gears:

 

My friend who has been rebuilding auto transmissions for over 35 yrs strongly recommends 1 red bottle of Lube Gaurd. I've never questioned him and have never had a failure from one of his rebuilds.
Anthony

 

I use this as well it was recommended to me from 2 different shops.
Jamie

 

Thanks guys. In case I have trouble finding "Lubegard", what's a good second choice? Thanks, Mike

 

Do you have a diagram of that by chance?

 

Any Advance Auto parts should carry Lubegard . . . I think in white, red and black? bottles. I can't remember exactly what they're all for, but I've heard good things as well.

 

Devon

 

I see the pic shows a two prong connector on the outside, but my supplier thinks it could be a one. Can anybody confirm if my 72 Gran Sport has the one or two?

 

bump... to the trans experts out there.

 

Could be either from what I remember...you'll have to crawl underneath to know for sure. If you'd rather not be bothered, just buy the two-prong part even if you only use one.

Devon