difference in year models 72 to 73

[scott123]

As far as the chassis, what changed? I recently bought a '73 with the 350/205 set up (changing my Blazer to auto).

A friend is interested in the chassis for a 'put what he has together/play toy.

He has a decent 72 long bed 2WD and is looking for a 72 chassis. I offered him the 73.

Are the cab mounts the same?

I have not done any measurements or checks. I put a 85 S10 on a 71K5 chassis and fabbed all the mounts but never did one this close in year models.

Any input will be greatly appreciated.

Scott