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-   -   Rear spring sag?? (https://67-72chevytrucks.com/vboard/showthread.php?t=622955)

DANTIP 03-30-2014 09:19 AM

Rear spring sag??
 
2 Attachment(s)
I just purchased this Blazer and think the rear looks like it rides a little low. It does have HD front suspension. Thinking about replacing rear springs and/or adding supplemental air-springs. Any thoughts??

Dan

mjjjracing 03-30-2014 10:56 AM

Re: Rear spring sag??
 
I think it sits just right , Most Blazers have that stance from the factory and even after you lift them . I would leave it alone myself . Just my 02 cents. Jim , By the way that is a very nice Blazer you have

SACRAMENTO 71 03-30-2014 11:38 AM

Re: Rear spring sag??
 
Great find! Love that original look and tone of blue.

DANTIP 03-30-2014 06:06 PM

Re: Rear spring sag??
 
Quote:

Originally Posted by SACRAMENTO 71 (Post 6602703)
Great find! Love that original look and tone of blue.

Thanks! The truck came with crappy-looking body color rally wheels and 12-year old dry cracked tires. I had the white steel wheels with fresh radials from a truck I recently sold. I love the vintage dog-dish caps! I also added my extreme-bend tow hooks. Runs great and the body/paint work is REALLY nice. I've owned many trucks but this is my first Blazer.

Dan

Jdubs71 04-03-2014 12:15 AM

Re: Rear spring sag??
 
You could add a leaf to the rear springs to level it out, but when/if you take the top off it might have the opposite affect. Adding a leaf would likely stiffen the ride.

DANTIP 04-03-2014 07:12 AM

Re: Rear spring sag??
 
I bought an air spring system that will supplement the rear leaf springs. I hope to get it installed this weekend and I'll share my thoughts afterward.

Dan

GCncsuHD 04-03-2014 10:30 AM

Re: Rear spring sag??
 
Looks fantastic.

Helper bags should help, but honestly, for almost 45 year old springs, I would have just replaced the springs.

You'll have to play around with the pressures in the bags, most of the ones I've dealt with you only run single digit pressures when unloaded, otherwise the rear gets really stiff. That may or may not give you the height you want, but it may give you the adjustability you want between top on/off. I.E. 8lbs top on, 3lbs top off, 30lbs when hauling, etc.

DANTIP 04-03-2014 10:41 AM

Re: Rear spring sag??
 
1 Attachment(s)
I pulled my 1972 Truck Data Book out and after looking at the drawing showing the Blazer dimensions, the stance on my Blazer looks about right. Notice the rear tire is further up into the wheel well compared to the front. Dan

GCncsuHD 04-03-2014 10:48 AM

Re: Rear spring sag??
 
Quote:

Originally Posted by DANTIP (Post 6609689)
I pulled my 1972 Truck Data Book out and after looking at the drawing showing the Blazer dimensions, the stance on my Blazer looks about right. Notice the rear tire is further up into the wheel well compared to the front. Dan

Well also keep in mind, the front fender opening is located noticeably higher on the body than the rear too, so there should be a larger fender gap up front than in the rear like you have.

72ironmike 04-06-2014 08:28 PM

Re: Rear spring sag??
 
Quote:

Originally Posted by DANTIP (Post 6603216)
Thanks! The truck came with crappy-looking body color rally wheels and 12-year old dry cracked tires. I had the white steel wheels with fresh radials from a truck I recently sold. I love the vintage dog-dish caps! I also added my extreme-bend tow hooks. Runs great and the body/paint work is REALLY nice. I've owned many trucks but this is my first Blazer.

Dan

Dan, Looks very nice !


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