The Stovebolt Site Forums The Parking Lot Tons 'o Fun 1 Ton Frame Dimensions

I am currently in the process of changing the rear motor mount crossmember on my 1951 1 ton for a 1954 1 ton crossmember so that I can mount a 292 and new style bell housing in my truck. When I put the 1954 crossmember in, it doesn’t sit flush on the bottom of the frame rail, it appears that the frame rail on my 1951 is wider than the 1954 frame. I was wondering if someone with a 1954 or 1955 first series 1 ton could measure the bottom width of the frame rail where the rear motor mount crossmember sits.

Thanks

Dave

Frame dimensions are in the Vehicle Information Kits.
Only available for Chevy trucks. GMC may be different, but I don't know.

Thanks, I have checked that as well as the assembly manual and they don’t show the dimension that I am looking for.

Dave

Isn't it dimension "b" that you need from Tim's link? That's the same as the Vehicle Information Kits info. Those dimensions are the same for either '51 or '54.

I seen that and the problem with dimension “B” is that this is the max sectional dimension, the dimension actually varies the length of the frame. For example I measured the rear of my frame and it measure 2.405”, I measured near where the rear motor mount is and it measures 2.75”, and I also measure the front which measures 2.36”. GM also changed their part number for the frame in 1954 as there was a change to the rear motor mount. So even though dimension “B” is the same for the 51 and 54 frame, the actual dimension where the motor mount sits could actually be different. Before I start removing material, I want to ensure that my measurements are correct.

Thanks
Dave

DID YOU GET THE DIMENSIONS YOU NEEDED? MY 1TN FRAME IS BARE ON STANDS. I CAN GET WHATEVER DIMENSION YOU WANT. SEND ME A PHOTO/SKETCH OF WHAT YOU NEED.

Thanks for the offer. I ended up taking measurements from the crossmember, marking the frame and removing a little bit of material on each side until it fit. Thanks again.

Dave