1962 GMC 3/4 ton - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ccwoody · 06-07-2010, 09:38 PM

I was wondering if anyone new of a conversion kit for a 62 GMC 3/4ton pickup, where I can change my drum brakes to disc and still keep the eight lug bolt pattern.

66coffin · 06-07-2010, 09:54 PM

when i bought my c20 the PO was doing just that with 8 lug donor parts from a mid 80's 3/4 ton chevy truck, i think i may even still have the spindles and rotors, let me know if you are interested. mine is a 66 so i don't know how different they are from your 62, other guys on this board will surely know.

jonzcustomshop · 06-07-2010, 09:54 PM

just buy a crossmember and suspension from a 73-87 chev gmc 3/4 ton, and swap it in, you will have to drill all the bolt holes except 2, but other than that it is a bolt in, switch the brake booster and power steering with brackets that you can get from captian fab here on the board.

Fred T · 06-07-2010, 10:49 PM

If you want discs on the rear.
www.blackbirdscustomtrucks.com

**Captainfab** · 06-08-2010, 12:51 AM

I agree with Jon. Just find yourself a '71-'87 C20 parts truck to use for conversion parts. All the C20 pickups up thru '87 and C20 Suburbans thru '91 were 8 lug. Doing the disc brake conversion on a C20 is essentially the same as on a C10. Here is a thread with a bunch of info......

http://67-72chevytrucks.com/vboard/s...ght=disc+brake

Quote:

Originally Posted by jonzcustomshop

just buy a crossmember and suspension from a 73-87 chev gmc 3/4 ton, and swap it in, you will have to drill all the bolt holes except 2, but other than that it is a bolt in, switch the brake booster and power steering with brackets that you can get from captian fab here on the board.

raycow · 06-08-2010, 01:59 AM

I don't know of any disc conversion kit for the 60-62 C-20 that allows you to keep your stock spindles or control arms.

Just so you know, if you do the crossmember swap, this means you will have to give up the torsion bars. If that's not a problem, the crossmember is the easiest way to go.

Ray

ccwoody · 06-08-2010, 07:31 PM

Thanks guys, for the info. I never thought about doing the crossmember swap. The torsion bars are not that big of a deal to me, but I do like the way they ride. However, the truck had a 305 v6 in it and I swaped this out for a small block 350. We all know that with this engine swap I had to use different motor mounts, which bolt up to the front of the motor. So, my question is will I, have to again get different motor mounts or will this still work.

I love this web site I wish I would have found it all long time ago....Thanks Again guys...

**Captainfab** · 06-09-2010, 12:56 AM

If you change the suspension crossmember, yes you will have to change the motor mounts to the side mounts. That is unless of course you would rather cut and weld the front mount bracket to the new crossmember. If it were me, I would go with the side mounts.

raycow · 06-09-2010, 08:51 PM

IMO, the side mounts are the better way to go, because parts for the stock 60-62 V-8 front mount are pretty scarce. In fact, I am surprised that you were able to find the bracket that bolts to the front of the block.

Ray

buckroseau · 10-03-2014, 05:01 PM

I've read on this thread you need a 73-87 and 71-87 for this swap? Just wondering which is right?

Thanks matt

06-07-2010, 09:38 PM	#1
ccwoody Registered User Join Date: Jun 2010 Location: Brush, Co Posts: 2	1962 GMC 3/4 ton I was wondering if anyone new of a conversion kit for a 62 GMC 3/4ton pickup, where I can change my drum brakes to disc and still keep the eight lug bolt pattern.

06-07-2010, 09:54 PM	#2
66coffin Registered User Join Date: Dec 2009 Location: diamond bar, calif. Posts: 206	Re: 1962 GMC 3/4 ton when i bought my c20 the PO was doing just that with 8 lug donor parts from a mid 80's 3/4 ton chevy truck, i think i may even still have the spindles and rotors, let me know if you are interested. mine is a 66 so i don't know how different they are from your 62, other guys on this board will surely know. __________________ '66 c10ish straight 292 power!

06-07-2010, 09:54 PM	#3
jonzcustomshop 1961 crewcab Join Date: Dec 2007 Location: missoula, mt Posts: 6,164	Re: 1962 GMC 3/4 ton just buy a crossmember and suspension from a 73-87 chev gmc 3/4 ton, and swap it in, you will have to drill all the bolt holes except 2, but other than that it is a bolt in, switch the brake booster and power steering with brackets that you can get from captian fab here on the board. __________________ 60 build: http://67-72chevytrucks.com/vboard/s...d.php?t=280904 61 crew build: http://67-72chevytrucks.com/vboard/s...d.php?t=646830 63 build: http://67-72chevytrucks.com/vboard/s...d.php?t=336537 64 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=448681 65 'burb build: http://67-72chevytrucks.com/vboard/s...d.php?t=590715 65 build: http://67-72chevytrucks.com/vboard/s...d.php?t=281955

06-07-2010, 10:49 PM	#4
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Re: 1962 GMC 3/4 ton If you want discs on the rear. www.blackbirdscustomtrucks.com __________________ Fred There is no such thing as too much cam...just not enough engine.

06-08-2010, 01:59 AM	#6
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: 1962 GMC 3/4 ton I don't know of any disc conversion kit for the 60-62 C-20 that allows you to keep your stock spindles or control arms. Just so you know, if you do the crossmember swap, this means you will have to give up the torsion bars. If that's not a problem, the crossmember is the easiest way to go. Ray Last edited by raycow; 06-08-2010 at 05:44 AM.

06-08-2010, 07:31 PM	#7
ccwoody Registered User Join Date: Jun 2010 Location: Brush, Co Posts: 2	Re: 1962 GMC 3/4 ton Thanks guys, for the info. I never thought about doing the crossmember swap. The torsion bars are not that big of a deal to me, but I do like the way they ride. However, the truck had a 305 v6 in it and I swaped this out for a small block 350. We all know that with this engine swap I had to use different motor mounts, which bolt up to the front of the motor. So, my question is will I, have to again get different motor mounts or will this still work. I love this web site I wish I would have found it all long time ago....Thanks Again guys...

06-09-2010, 12:56 AM	#8
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: 1962 GMC 3/4 ton If you change the suspension crossmember, yes you will have to change the motor mounts to the side mounts. That is unless of course you would rather cut and weld the front mount bracket to the new crossmember. If it were me, I would go with the side mounts. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

06-09-2010, 08:51 PM	#9
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: 1962 GMC 3/4 ton IMO, the side mounts are the better way to go, because parts for the stock 60-62 V-8 front mount are pretty scarce. In fact, I am surprised that you were able to find the bracket that bolts to the front of the block. Ray Last edited by raycow; 06-09-2010 at 08:53 PM.

10-03-2014, 05:01 PM	#10
buckroseau Registered User Join Date: Sep 2014 Location: Buffalo, MN Posts: 92	Re: 1962 GMC 3/4 ton I've read on this thread you need a 73-87 and 71-87 for this swap? Just wondering which is right? Thanks matt



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