1967 Rearend - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*LAFNATU* · 07-06-2007, 10:26 AM

Hey Guy's i just aquired a rearend out of 1967 truck, 12 bolt, 3:73, and i started cleaning it up and noticed that the mounting brackets to the trailing arm's are about 3 inches further in (on each side) than the ones on my 62. My question is have you guys been relocating the mounts or just pulling the trailing arm's in to match the mounts? Thanks.....

62ChevyStep · 07-06-2007, 03:55 PM

I swapped in a 12 bolt 3.73 from a 72' and ran into the same issue. We carefully removed the old ones (Saddles), purchased new ones and reinstalled them in the correct location, adjusting for pinion angle etc since we were performing a 5" static drop in the rear.

**slepysal** · 07-06-2007, 04:13 PM

I am looking at a 67 rear end too , I dont have to buy trailing arms doI ?

62ChevyStep · 07-06-2007, 04:17 PM

Quote:

Originally Posted by slepysal

I am looking at a 67 rear end too , I dont have to buy trailing arms doI ?

No, those on the rack are the stock ones, we cleaned up, fitted new bushings, and boxed and beefed up a bit before reinstallation.

joehalford01 · 07-06-2007, 06:08 PM

hey guys, i'm new to the site, been lurking a while and like everyones work. I'm curious though, why is everyone switching to a 67 rear end?

19GMC63 · 07-06-2007, 06:34 PM

I guess i'm the odd man out with a leafspring rear end.
Anyone know how easy is it to swap a leaf rearend from a 67-72?

62ChevyStep · 07-06-2007, 06:39 PM

Quote:

Originally Posted by joehalford01

hey guys, i'm new to the site, been lurking a while and like everyones work. I'm curious though, why is everyone switching to a 67 rear end?

I personally wanted a 12 bolt, 3.73 rear end, to go with the 350 (soon to be 383)/700r4 driveline setup we were installing. with the lower 1st & 2nd gears, and the OD, and discussing it with many, many mechanics and ol' hot rod/ol' school street drag racing guys this was one of the recommended setups. has provided me with good low gearing for off the line, and just under 2100RPM while cruising@ 70mph for better gas milage. Just my .02 worth.

62ChevyStep · 07-06-2007, 06:42 PM

Quote:

Originally Posted by 19GMC63

I guess i'm the odd man out with a leafspring rear end.
Anyone know how easy is it to swap a leaf rearend from a 67-72?

I wouldn't think it would be any tougher than with a coil, do you still have trailing arms? I figure just adjusting the respective saddles accordingly?

have any pictures?

07-06-2007, 10:26 AM	#1
LAFNATU Account Suspended Join Date: Jan 2007 Location: BILLINGS Posts: 87	1967 Rearend Hey Guy's i just aquired a rearend out of 1967 truck, 12 bolt, 3:73, and i started cleaning it up and noticed that the mounting brackets to the trailing arm's are about 3 inches further in (on each side) than the ones on my 62. My question is have you guys been relocating the mounts or just pulling the trailing arm's in to match the mounts? Thanks.....

07-06-2007, 03:55 PM	#2
62ChevyStep Senior Member Join Date: May 2005 Location: Portales, NM Posts: 359	Re: 1967 Rearend I swapped in a 12 bolt 3.73 from a 72' and ran into the same issue. We carefully removed the old ones (Saddles), purchased new ones and reinstalled them in the correct location, adjusting for pinion angle etc since we were performing a 5" static drop in the rear. Attached Images __________________ ________________________ 62' 3.5/5 drop SWB Fleet, PS, PB-Dsk/Drm,350/700R4 08' Chevrolet Silverado CrewCab 05'Toyota Tacoma Prerunner SR5 Last edited by 62ChevyStep; 07-06-2007 at 06:30 PM.

07-06-2007, 04:13 PM	#3
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: 1967 Rearend I am looking at a 67 rear end too , I dont have to buy trailing arms doI ? __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

07-06-2007, 06:08 PM	#5
joehalford01 Registered User Join Date: May 2007 Location: Visalia, CA Posts: 98	Re: 1967 Rearend hey guys, i'm new to the site, been lurking a while and like everyones work. I'm curious though, why is everyone switching to a 67 rear end?

07-06-2007, 06:34 PM	#6
19GMC63 Registered User Join Date: Nov 2006 Location: Nashville, TN Posts: 1,510	Re: 1967 Rearend I guess i'm the odd man out with a leafspring rear end. Anyone know how easy is it to swap a leaf rearend from a 67-72?

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