Longbed GMC to Chev suspension? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SeanPaintsFlames · 06-19-2009, 10:45 PM

I have a (obviously) longbed 65 GMC. Someone switched the rearend to a car rear, but maintained the leaf springs. I've located a 67-72 Chevy shortbed rear with the coil springs. If I get the trailing arms too, It'll fit, right? The GMC driveshaft hoop crossmember is pre-drilled for the coil-sprung rear trailing arms, but my only cencern is the length difference in short vs longbed. Are there different long/short bed trailing arms?

SCOTI · 06-19-2009, 11:08 PM

The length of the truck arms are the same for both long & short wheel bases.

The long bed frames have extra bed floor brackets that aren't used & an extra 8" that needs to be trimmed off the ends of the rails. The other 12" is removed from in front of the truck arm crossmember between the F/R cab mounts (the rear cab mounts are then relocated).

06-19-2009, 10:45 PM	#1
SeanPaintsFlames Registered User Join Date: Feb 2008 Location: Buford, Ga. Posts: 339	Longbed GMC to Chev suspension? I have a (obviously) longbed 65 GMC. Someone switched the rearend to a car rear, but maintained the leaf springs. I've located a 67-72 Chevy shortbed rear with the coil springs. If I get the trailing arms too, It'll fit, right? The GMC driveshaft hoop crossmember is pre-drilled for the coil-sprung rear trailing arms, but my only cencern is the length difference in short vs longbed. Are there different long/short bed trailing arms? __________________ My 68 cougar restomod build:HERE

06-19-2009, 11:08 PM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,080	Re: Longbed GMC to Chev suspension? The length of the truck arms are the same for both long & short wheel bases. The long bed frames have extra bed floor brackets that aren't used & an extra 8" that needs to be trimmed off the ends of the rails. The other 12" is removed from in front of the truck arm crossmember between the F/R cab mounts (the rear cab mounts are then relocated). __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

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