are all vac pumps the same?

[advanracing62]

from 88-95? I found one from a 6.2 88 2500 but not sure if it will work on 94 TD... Anyone?

[whatnot]

The one one my '93 6.2 was the same. Actually it is on my 95 now.
I think that all of the belt driven ones are the same.

[morgan]

I say a definite "NO".

I needed one for my 94. Avant Salvage sent me two that were not the same as what I had. They would not work. I had to mix and match parts from my broken one and the two that they sent me to make one that would work. It was very frustrating. Don't forget to put some oil in the pump housing before you install it!!!

[JohnC]

There are 2 different pulley driven pumps that I know of. One is for AC and the other not, both fit '94 and up, maybe more. AC on the earlier trucks is different, so maybe the pump is too...

[markelectric]

Skip the pump and go right to a turbomaster. If you really want a vacuum pump you can have mine off a 94. After I installed my turbomaster, I'm not going back. The belt for a 93 fits fine without the pump.