The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Rear Axle Ratio Charts For 1967

dlyons321 · 09-10-2022, 02:57 PM

This is one awesome thread! So the stamp on my axle is TPR 0612w2 E. It is decoded as either 1970 KE 10 3.07 w/ posi or 1971 G-10 3.36. The gears are 3.07 I can confirm but not with a stamp, rather an engraving where the stamp usual is. This is a 12 bolt unit.
Is the KE designated as 4 wheel drive rear end?
Any literature on decoding the casting #s on the outside of rear end? #3896839
My truck is a 1970 k10 swb. Im curious id that 12 bolt was an option on a 1/2 ton truck. The SPID does not say that. Most likely added later by previous owner?

09-10-2022, 02:57 PM	#78
dlyons321 Registered User Join Date: Apr 2016 Location: Phoenix, AZ Posts: 9	Re: Rear Axle Ratio Charts For 1967 - 1972 GM Trucks This is one awesome thread! So the stamp on my axle is TPR 0612w2 E. It is decoded as either 1970 KE 10 3.07 w/ posi or 1971 G-10 3.36. The gears are 3.07 I can confirm but not with a stamp, rather an engraving where the stamp usual is. This is a 12 bolt unit. Is the KE designated as 4 wheel drive rear end? Any literature on decoding the casting #s on the outside of rear end? #3896839 My truck is a 1970 k10 swb. Im curious id that 12 bolt was an option on a 1/2 ton truck. The SPID does not say that. Most likely added later by previous owner?