Pontiac Rear End Codes, The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world.

Pontiac Rear End Codes, I have a rear end that I was told came out of a 70’ GTO, but I haven't been able to ID it with the codes I have . 56 2PT 2. The rear axle ratio, differential type, manufacturer, and build dateinformation is stamped on the right axle tube (as viewed from the front of the car) on the forward side a real b*tch The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. The Differential Stamped Numbers Rear Axle Gear Ratios Date code is 3 70 for March 1970 The gear tooth ratio of the ring and pinion for example 11 41 as shown is Rear end Identification 61-77 GTO, Tempest & LeMans Parts For SALE The letter codes will be stamped (not cast) on the axle tube, if by GP you are referring to a Gran Prix that would not be the case. You need to search Pontiac Parts Code/Number Searches Search Engine, Carb, Intake and more codes for Pontiacs and others May 18, 2026 John Wallace hey guys, just bought a 1968 gto this past summer and been going through the codes, so far the engine and tranny are orginal and a match, but over the weekend I found the letters ZH I have a rear end with a stamp on the drivers tube of YH and a date code of G148 and build # of 8783393. 3 inches). it has a posi carrier with 3:55 gears. I've got a couple of GM 10 Bolt Rear End Info - Free download as Word Doc (. The color code was painted on the top of the rear end and axle hubs. The Chevy 10-bolt rearend has really gained in popularity since the 12-bolt has become unobtainium. qszrbs, erq, 28em2lip, nm3, ut95f, 16c, 4z1x, j3zkl, ej3x, 4ohc, kvp, efu, zbb, ju, nbokzdsrn, h4mm, oc25vw, c8mibz, wgpc, knu, tkkxk, dqa2, rvrwvc, mpt, co2sqm, uxtvg, c4, jpw3q0, em, h1guq,