Double Hump crossmember ??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

82GMCShortBed · 04-26-2008, 06:58 PM

Does anyone know what year crossmembers are interchangeable?
I have an '82 1/2 ton GMC with TH350 and want to switch out the single hump tranny crossmember before I put the headers and exhaust in. I swapped one years ago on my 75 Scottsdale but don't recall what it came out of. May have been a 3/4 or 1 ton truck. Pretty sure it was 2wd. I searched previous post and didn't come up with any definite answers.
Thanks,
Lloyd

slug · 04-26-2008, 09:00 PM

i got a tranny crossmember with the 2 humps in it from a 77 1/2 ton, if thats what you are talking about. it was a truck with a 454 and a th400, lwb either a big 10 or heavy half

04-26-2008, 06:58 PM	#1
82GMCShortBed Registered User Join Date: Oct 2007 Location: Smyrna, TN Posts: 79	Double Hump crossmember ??? Does anyone know what year crossmembers are interchangeable? I have an '82 1/2 ton GMC with TH350 and want to switch out the single hump tranny crossmember before I put the headers and exhaust in. I swapped one years ago on my 75 Scottsdale but don't recall what it came out of. May have been a 3/4 or 1 ton truck. Pretty sure it was 2wd. I searched previous post and didn't come up with any definite answers. Thanks, Lloyd

04-26-2008, 09:00 PM	#2
slug Registered User Join Date: Jan 2008 Location: Groves,TX Posts: 483	Re: Double Hump crossmember ??? i got a tranny crossmember with the 2 humps in it from a 77 1/2 ton, if thats what you are talking about. it was a truck with a 454 and a th400, lwb either a big 10 or heavy half __________________ there is nothing better than cutting metal with fire.......except cutting metal with electricity!!!

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