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71johnnyblazer · 03-09-2021, 05:19 PM

Picked up an 87 GMC R25 Crew Cab with a duel rear end. VIN number on cab doesnt say. Did the 3/4 ton trucks ever come factory with duel rears? Or did someone add them? Also where can I find the VIN on the frame to verify that the cab matches the frame? And what is measurements for a Narrow Duel rear end versus a standard duel rear end? Thanks ahead, John.

03-09-2021, 05:19 PM	#1
71johnnyblazer Registered User Join Date: Jan 2008 Location: Georgia Posts: 22	1987 GMC R25 Duelly??? Picked up an 87 GMC R25 Crew Cab with a duel rear end. VIN number on cab doesnt say. Did the 3/4 ton trucks ever come factory with duel rears? Or did someone add them? Also where can I find the VIN on the frame to verify that the cab matches the frame? And what is measurements for a Narrow Duel rear end versus a standard duel rear end? Thanks ahead, John.