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Old 06-22-2005, 06:05 PM
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raise rear?

Hi,
I'm dealing with a Pontiac 66 LeMans. Original engine was a 6cyl OHC.
That was replaced with a new GM job ,chevy 350.

After the swap I got tire rub so ordered some new springs both front and rear from Kanter, they gave me the 8 cyl springs for the year and model.
The result was about a 2" lift in the front but the rear stayed the same. sitting real low now.
The front end on this car has never been done, not so much as touched,,yeah it's rotten.

I was wondering if a complete front end overhaul is going to tighten up and drop the front a little and level me out any? Doing that next.
If that don't do it what are my other options of raising the rear without changing the front springs again?
I don't really want to torch them.

Thanks for any info

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Old 06-22-2005, 07:59 PM
GothRod87
 
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YEa get an old school shackle kit for it and put some rear air shocks...thats been thr solution to this problem for quite some time,
Brandon
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Old 06-23-2005, 01:43 AM
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Quote:
Originally Posted by earthworm
Hi,
I'm dealing with a Pontiac 66 LeMans. Original engine was a 6cyl OHC.
That was replaced with a new GM job ,chevy 350.

they gave me the 8 cyl springs for the year and model.
The result was about a 2" lift in the front

Pontiac engines weigh a bunch more than a Chevy 350. Maybe they'd swap for some Chevelle springs or something.

Might try Air-Lifts inside the rear springs. Plumb them separately to avoid excess body roll in turns. Or maybe Kanter has some springs with a little lift in them.

http://www.jcwhitney.com/autoparts/I...22960310229424 click on the orange ones
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Old 06-23-2005, 07:26 AM
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Thanks.
The air thing is new to me, never had them in a car before but I'm going to consider it a definate option.
Just looking for an inch so my tail pipes don't scrape leaving gas stations.
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Old 06-23-2005, 09:56 AM
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Quote:
Originally Posted by gothrod87
YEa get an old school shackle kit for it and put some rear air shocks...thats been thr solution to this problem for quite some time,
Brandon
Yes it has and unfortunately it's never been the "safe" solution. Air shocks will solve the problem. Longer shackles will do nothing but allow your rear to move side to side which can in many circumstances be dangerous. A good set of air shocks will raise the rear of your car up to 3 or more inches. As for the front, give the new springs a little while to "settle" and you should find that after 500-1000 miles the front end will drop a inch or two.
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Old 06-23-2005, 10:01 AM
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Using air shocks to raise it can make it ride rough, and puts the majority of the car's load on the shock braces. IMO this is undesireable.

Why not just get some S/W coils for the back? It is a coil spring rear yes? That counts out shackles anyway.

I agree with the Chevelle springs up front. Kanter probably gave you some bigblock Chevy springs.

Plus the cars back then were usually a little lower in the back right off the showroom floor. I think if you got some 326 Chevelle non A/C front coils and some S/W rears and you should be good.
CS5235 1966 Lemans Wagon Rear
CS6204 1966 Chevelle 326 non A/C Front
Available cheap and usually locally.

This might help too:
http://www.classiccarsprings.com/springrates.html
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Old 06-23-2005, 03:32 PM
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I agree with yesgo about the station wagon coils. I have done this on more than one occasion and have had great results. The springs are shorter uninstalled but are a higher spring rate, my experience has been about a 2" increase in height.
Elcamino springs would be an option also.
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Old 06-23-2005, 03:50 PM
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If your rear springs are coils and the replacements didn't

raise the car substantially, you got the wrong set of springs, pal.
Look at any picture of that car taken when it was new and you will see a car that sits up front and rear, a nice agressive stance. Over the years both front and rear springs tend to sag dropping the wheel opening lip over the tops of the tires whereas a stock spec spring will always expose most if not all of the tire. I've replaced many sets of coils on the rear of this era of car even into the 70s and always had a raise of at least 3-6" in the rears in particular.
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Old 06-23-2005, 08:06 PM
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I think I'm going to try the wagon spring idea for the rear. I want that kind of solid fix
I'm kinda turned off the air ride idea, especially since I have no intentions of ever adjusting height. Just want to set the height and leave it.
The front springs right now have the wheel well about an inch over the tire tread which I don't mind ( and their still very new)but the rear is about an inch below the tread line.
Maybe I did get the wrong rears because there's virtually no difference between the new ones and the sagged out 30 year old ones I replaced.
Thanks for all the ideas and info, much appreciated.
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