Eaton Rear End ID Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72 Cheyenne K20 · 11-29-2015, 07:05 PM

Hi Guys, I just bought a 71 3/4 ton 4x4 with 350/sm465/np205. Checked the F & R ends today and wanted to ask if anyone knows the factory codes for axles. from what I can see, the code on the Eaton is TJH and followed by G 1172. From reading some other posts,I think the TJH is correct for 71 but have no idea what the G 1172 is for. Also, what's in the red square?

Thanks for any help you have to offer, Scott

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11-29-2015, 07:05 PM	#1
72 Cheyenne K20 Registered User Join Date: Feb 2003 Location: Staunton, Virginia Posts: 554	Eaton Rear End ID Question Hi Guys, I just bought a 71 3/4 ton 4x4 with 350/sm465/np205. Checked the F & R ends today and wanted to ask if anyone knows the factory codes for axles. from what I can see, the code on the Eaton is TJH and followed by G 1172. From reading some other posts,I think the TJH is correct for 71 but have no idea what the G 1172 is for. Also, what's in the red square? Thanks for any help you have to offer, Scott



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