Rear Pinion angle and shims - The 1947 - Present Chevrolet & GMC Truck Message Board Network

epashhans · 10-04-2010, 12:48 PM

Just working on getting my driveline aligned on my 67 last night. It is about a 4/5 static drop and it appears the rear end is going to need some serious shimming...like 9 or 10 degrees. Anyone else have to shim that much? I am running stock 3/4 trailing arms with 5 inch drop springs and shock relocaters. It has a 454/T5 transplant and single driveshaft. It seems a bit excessive to me...? What are you all running for shims? or anything? I wouldn't mind putting an inch drop block but my driveshaft would make contact in the crossmember hoop I think. Its pretty close.

71meangreenc10 · 10-04-2010, 08:27 PM

Mine was at 7 degrees, got some 4 inch shims and that fixed the problem I had....

Smitty

epashhans · 10-04-2010, 08:31 PM

Alright, good to know. When you say 4 inch, you mean length? I will probably get some stackable ones to get me where I need to be.

71meangreenc10 · 10-04-2010, 08:41 PM

Sorry,
Ment 4 degree shims.....

Smitty

71meangreenc10 · 10-04-2010, 08:42 PM

Call this guy, he makes the shims.

http://www.stockcarproducts.com/trkarm1.htm

Smitty

epashhans · 10-05-2010, 01:00 AM

Yeah, I was looking at their site because of the slip in design. I just emailed him to see if he could help. That would be nice to have a single shim instead of stacking. Thanks!

**Hart_Rod** · 12-03-2010, 10:56 PM

Quote:

Originally Posted by 71meangreenc10

Mine was at 7 degrees, got some 4 inch shims and that fixed the problem I had....

Smitty

Smitty do you have any pictures of your shims installed? Thanks,

R/

dznucks · 12-05-2010, 08:14 AM

Quote:

Call this guy, he makes the shims.

http://www.stockcarproducts.com/trkarm1.htm

X2 on this guy. he quoted me around $50 for slip in shim.
I had my drop blocks machined to the right angle for $20.

**Hart_Rod** · 12-05-2010, 11:35 AM

Quote:

Originally Posted by dznucks

X2 on this guy. he quoted me around $50 for slip in shim.
I had my drop blocks machined to the right angle for $20.

Got any pictures?

10-04-2010, 12:48 PM	#1
epashhans Registered User Join Date: Jul 2009 Location: MT Posts: 319	Rear Pinion angle and shims Just working on getting my driveline aligned on my 67 last night. It is about a 4/5 static drop and it appears the rear end is going to need some serious shimming...like 9 or 10 degrees. Anyone else have to shim that much? I am running stock 3/4 trailing arms with 5 inch drop springs and shock relocaters. It has a 454/T5 transplant and single driveshaft. It seems a bit excessive to me...? What are you all running for shims? or anything? I wouldn't mind putting an inch drop block but my driveshaft would make contact in the crossmember hoop I think. Its pretty close. __________________ '67 C-10 Shorty - 454, 5spd, and speed holes!

10-04-2010, 08:27 PM	#2
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,179	Re: Rear Pinion angle and shims Mine was at 7 degrees, got some 4 inch shims and that fixed the problem I had.... Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 69 C30 Former Motor Home, Flat Bed time 70 G20 Red-E-Kamp Conversion "I'm your Boogy Van"

10-04-2010, 08:31 PM	#3
epashhans Registered User Join Date: Jul 2009 Location: MT Posts: 319	Re: Rear Pinion angle and shims Alright, good to know. When you say 4 inch, you mean length? I will probably get some stackable ones to get me where I need to be. __________________ '67 C-10 Shorty - 454, 5spd, and speed holes!

10-04-2010, 08:41 PM	#4
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,179	Re: Rear Pinion angle and shims Sorry, Ment 4 degree shims..... Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 69 C30 Former Motor Home, Flat Bed time 70 G20 Red-E-Kamp Conversion "I'm your Boogy Van"

10-04-2010, 08:42 PM	#5
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,179	Re: Rear Pinion angle and shims Call this guy, he makes the shims. http://www.stockcarproducts.com/trkarm1.htm Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 69 C30 Former Motor Home, Flat Bed time 70 G20 Red-E-Kamp Conversion "I'm your Boogy Van"

10-05-2010, 01:00 AM	#6
epashhans Registered User Join Date: Jul 2009 Location: MT Posts: 319	Re: Rear Pinion angle and shims Yeah, I was looking at their site because of the slip in design. I just emailed him to see if he could help. That would be nice to have a single shim instead of stacking. Thanks! __________________ '67 C-10 Shorty - 454, 5spd, and speed holes!

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