lower A-arm interchange - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68 TT · 03-13-2010, 12:02 PM

I need a set of 3/4-ton lower A-arms for my C2500 disc brake swap but there are no C20 or C30 trucks in the wrecking yard around here at the moment.

There are a few G30 vans that share the lower ball joint with the C20 & C30 but the interchange book says the A-arms are different.

Anybody know what is different about the van lower A-arms that make the interchange book say they won't work on a truck?

If there were any 2-wd trucks in the wrecking yard I would tear some off a van and see if they fit the truck but there are none to be found at the moment.

Any help would be greatly appreciated.

KQQL IT · 03-13-2010, 01:16 PM

I believe the van stuff uses a rubber bushings. Where the 3/4 ton trucks use a threaded steel insert bushing

68 TT · 03-14-2010, 10:39 AM

Quote:

Originally Posted by KQQL IT

I believe the van stuff uses a rubber bushings. Where the 3/4 ton trucks use a threaded steel insert bushing

That would be OK as this is going on a 67 C-10.

I will take a trip to the yard today and see if they have anything new that isn't on the web site yet. Maybe I will get lucky and find the C20 parts I know will work.

If they have a C10 I will see how the van part looks / fits on it.

03-13-2010, 12:02 PM	#1
68 TT Still plays with trucks Join Date: Jul 2009 Location: Spokane, WA Posts: 3,556	lower A-arm interchange I need a set of 3/4-ton lower A-arms for my C2500 disc brake swap but there are no C20 or C30 trucks in the wrecking yard around here at the moment. There are a few G30 vans that share the lower ball joint with the C20 & C30 but the interchange book says the A-arms are different. Anybody know what is different about the van lower A-arms that make the interchange book say they won't work on a truck? If there were any 2-wd trucks in the wrecking yard I would tear some off a van and see if they fit the truck but there are none to be found at the moment. Any help would be greatly appreciated. __________________ miSSed opportunity - ground up creation of an AWD 1994 454 SS that never was http://67-72chevytrucks.com/vboard/s...d.php?t=795577 69 C10 shortbed stepside 400 small block - built like what a super sport truck could have been 69 K20 lwb TBI 350 4L60E NP208 14-bolt Dana-44 w/disc 68 Camaro SS / RS 500hp 439 inch roller cam big block 4L80E 79 Malibu TPI 350 4L60 w/ Z28 steering & sway bars

03-13-2010, 01:16 PM	#2
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,257	Re: lower A-arm interchange I believe the van stuff uses a rubber bushings. Where the 3/4 ton trucks use a threaded steel insert bushing __________________ " That didnt make it any newer " " Dont antique the equipment "



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