Anyone know where they are located at on the rotor? They have 2 different rotors for my truck. One is special order the other in stock. Anyone know if there is any other way to tell which one I have???

 

Well, if you have a '91 4x4, then if you have bolt on locking hubs you'll need the special order rotors. If you have internal, Chevy-style, locking hubs, the ones that they have in stock are probably what you need -- they are the same as for a Chevy 4x4 with the D-60 front axle.

I don't see you having a signature, though, so maybe I am way off base here.

 

Its a 1993 4x4 5spd. 4500lb front axle.

 

Then as far as I know, there is only one part the truck can have. It should cross with an early '80's chevy single rear wheel one ton truck.