I used the GM heritage website to check VINs, frame thickness, equipment, measurements of all types, motor specs, differential specs, springs, etc etc, RPO, wheels available.......all kinds of things. You find "trucks", then the year and the company document pops up. I don't know what you call those documents. They had all the specs and were dated/released at the time the truck was being marketed. Your RED info I don't want to call them "kits" because that is what they would send you I guess. NOT looking for a kit. Does anyone one know what I'm talking about?

When I type in GM Heritage Center...I get a bunch of sales garbage and promotion and join this and join that and company news and propaganda. No giant database of specification look-up like there was.

Last edited by bartamos; 10/29/2022 7:11 PM.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn