body mount differences between 73-80 and 81-87

[tgh117]

Does anyone know the differences between the 73-80 cab mounts and the 81-87 body mounts other then the look. I am trying to decide which ones to use for my truck rebuild. I have a 77 frame, but I am using an 83 cab and front end. They are both the same price pretty much, they just seem to look different. I want to make sure I get the right ones and will be happy with the end result. I don't need them just yet, still have to yank the motor and paint up the whole frame and everything, but I will need to place the order in the near future.

Thanks for all the help.

[ChaseDale3and8]

Get mounts for your '77 frame. Don't buy them for the body because they will be the wrong ones. The 73-80 were thicker than the 81-87 because the frames were different from 81 on. ...Joe

[tgh117]

Exactly what I need to know. Thanks for the tip Joe!

[69face]

the trucks have two different mounting patterns also, the 73-80 is round while 81-87 is oblong. the mounts aren't interchangeable at the core area, but the rest are.

[Captkaos]

The hole in the mounts are also of different size on 73-80 vs 81-87.
If there are some on the 77 chassis that is bad, get 73-80 mounts and use the same version of bushings (73-80) with you 81-87 cab and you will be fine.