1982 KW Transmission question

How long have you been running it without the mount? And what is the wheelbase of thw truck?

 

They used a piece of 3" channel iron that ran from frame rail to frame rail. It rested on top of the frame rails. There were two holes near center of channel to mount to top of trans at rear with studs. They used a coil spring on the stud mounts to allow some movement.

 

I do believe the above post is correct. Earlier KW's had a support that ran across the back of the transmission, bolted to the top housing with 2 bolts, and ran to the frame rails. I remember a flat bar that rested on a bracket that was on each frame rail. Broke one once, never fixed it, ran that way for a long time. Welding shop could easily build one.

 

That's where I was going. No more than that rear mount does if it hasn't been there in years I would not worry about putting it on.

 

There were a few different versions used and many of them were just discarded. The problem with them is that they go from frame rail to frame rail in essence making them a crossmember. With frame twist and flex while operating, they just don't take the abuse very well being made of light material and will quickly tear up if mounted solid to the frame rails. Their best advantage was to prevent the transmission from falling down in the event of broken or loss of bellhousing mounting bolts.

 

yup thats how it was on the old 85' kw w900b i drove just had a piece of steel flatbar bolted to top of trans but was more of a support then it was a mount. No rubber cushion there.