Shock Mount Issue Need Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**BlueBullet** · 01-03-2015, 08:22 PM

I am working on going through and cleaning up my rear axle and need help on what to do next. For what I know of the rear axle is that it is a GM 12 bolt and it had some repairs done on it at sometime. I got it sandblasted today and just noticed that the shock mounts are different. Also they are not inline with each other. Are they supposed to be offset like that or are the supposed to be inline? I ordered a Skyjacker lift and wondering if this is going to be an issue.

Thanks Nathan

**BlueBullet** · 01-04-2015, 12:26 PM

Ttt

tcrist · 01-04-2015, 02:04 PM

The shock mounts on my 70GMC are not like that. Mine look even and parallel.

sprint_9 · 01-04-2015, 03:04 PM

What kind of repairs were done, it might be worth checking to see if the axle tube is straight

tcrist · 01-04-2015, 03:05 PM

Are the spring perches parallel?

**BlueBullet** · 01-04-2015, 05:54 PM

This axles is out of a pickup that was a project that someone gave up on. It is a 1972 K10 SWB. In the file that came with the pickup the is a receipt from a engineering and manufacturing company. On the receipt it says they specialize in custom drivelines and machine part. It also says on the receipt to make shaft to customers sample shaft provided. That is all I know about the axle. The perches seem the be parallel and the business seems as if they would know what they are doing. Not sure if one of the previous owners welded shock mounts on wrong.

**BlueBullet** · 01-04-2015, 05:56 PM

Does anybody know what the measurement is supposed to be on the spring perches center to center.

01-03-2015, 08:22 PM	#1
BlueBullet Senior Member Join Date: Apr 2013 Location: Danvers Minnesota Posts: 967	Shock Mount Issue Need Help I am working on going through and cleaning up my rear axle and need help on what to do next. For what I know of the rear axle is that it is a GM 12 bolt and it had some repairs done on it at sometime. I got it sandblasted today and just noticed that the shock mounts are different. Also they are not inline with each other. Are they supposed to be offset like that or are the supposed to be inline? I ordered a Skyjacker lift and wondering if this is going to be an issue. Thanks Nathan Attached Images __________________ 1972 K10 SWB wife's driver 1967 Pontiac GTO Big Bird - 1972 Longhorn K30 http://67-72chevytrucks.com/vboard/s...d.php?t=753294

01-04-2015, 12:26 PM	#2
BlueBullet Senior Member Join Date: Apr 2013 Location: Danvers Minnesota Posts: 967	Re: Shock Mount Issue Need Help Ttt __________________ 1972 K10 SWB wife's driver 1967 Pontiac GTO Big Bird - 1972 Longhorn K30 http://67-72chevytrucks.com/vboard/s...d.php?t=753294

01-04-2015, 02:04 PM	#3
tcrist Registered User Join Date: May 2014 Location: Manteca, Ca. Posts: 274	Re: Shock Mount Issue Need Help The shock mounts on my 70GMC are not like that. Mine look even and parallel. __________________ Terry Soon to be retired and moving to Bristol, TN.

01-04-2015, 03:04 PM	#4
sprint_9 Registered User Join Date: Nov 2012 Location: 9 Posts: 862	Re: Shock Mount Issue Need Help What kind of repairs were done, it might be worth checking to see if the axle tube is straight

01-04-2015, 03:05 PM	#5
tcrist Registered User Join Date: May 2014 Location: Manteca, Ca. Posts: 274	Re: Shock Mount Issue Need Help Are the spring perches parallel? __________________ Terry Soon to be retired and moving to Bristol, TN.

01-04-2015, 05:54 PM	#6
BlueBullet Senior Member Join Date: Apr 2013 Location: Danvers Minnesota Posts: 967	Re: Shock Mount Issue Need Help This axles is out of a pickup that was a project that someone gave up on. It is a 1972 K10 SWB. In the file that came with the pickup the is a receipt from a engineering and manufacturing company. On the receipt it says they specialize in custom drivelines and machine part. It also says on the receipt to make shaft to customers sample shaft provided. That is all I know about the axle. The perches seem the be parallel and the business seems as if they would know what they are doing. Not sure if one of the previous owners welded shock mounts on wrong. __________________ 1972 K10 SWB wife's driver 1967 Pontiac GTO Big Bird - 1972 Longhorn K30 http://67-72chevytrucks.com/vboard/s...d.php?t=753294

01-04-2015, 05:56 PM	#7
BlueBullet Senior Member Join Date: Apr 2013 Location: Danvers Minnesota Posts: 967	Re: Shock Mount Issue Need Help Does anybody know what the measurement is supposed to be on the spring perches center to center. __________________ 1972 K10 SWB wife's driver 1967 Pontiac GTO Big Bird - 1972 Longhorn K30 http://67-72chevytrucks.com/vboard/s...d.php?t=753294



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