Mike,

Nice 46 Panel.

I was looking at the parts book and the 1/2 ton and the larger COMM and UTIL trucks show different part numbers.

1/2 - p/n 3659947
COMM - pn 3682201

I would think the size of the frame would put the body and the engine in a different location when compared to the half ton.

Dont really have any specs on the length. The bushings may also be a different size.

Hope this is some help. I will crawl under my truck and take some measurements and get back with you.

Jim



Jim