Multi-leaf springs are too high. [Archive] - Team Camaro Tech

: Multi-leaf springs are too high.


sgreen2
Apr 3rd, 07, 09:43 PM
I feel this is a dumb question, but I simply don't know the answer. I converted my 67 rear springs from mono to multi leafs about 10 years ago. The rear of the car sits way to high now with a huge gap between the rear tire and the fender. I got side tracked for 10 years and just recently got involved with the car again. I don't remember everything I did when mounting these new springs or even where I bought them, but they are 5 leaf springs and I used the stock 67 mono leaf lower shock plates. I did use U bolts to mount the differential to the springs instead of the T bolts and the rear shackles are new as well but they seem to be about the same as stock. I don't like how there is space between the upper and lower mounts on either side of the springs, is that a problem? The main question is how to get the ride height back down to a proper height? Can leafs simply be removed from the springs, or can the springs be "de-arched"? I will be running a pretty stock 350 SB engine in the car.

Thanks for any replies!

Camaro Dave
Apr 3rd, 07, 10:30 PM
Steve, go to the Camaro Tech Forum and check out nojoke900's thread on that same problem. There are a lot of suggestions in that thread on what you can do.

CFunK
Apr 4th, 07, 12:05 AM
I went the de-arch route. I brought the car to the drive line shop, told them how much of a rear quarter gap I wanted and 2 days later had the perfect (IMHO) rear stance.

sgreen2
Apr 4th, 07, 01:36 PM
I appreciate the two quick replies, and I have gone and read the related thread under camaro tech. Since some indicate that the springs will settle after driving it I am considering using lowering blocks at first. But, it seems to me that this will make my lower plate even closer to the ground and may even require the use of shock extenders. I would also have to get longer u-bolts.

Funk, did the springs on your car seem to settle at all after having them de-arched?

-Steve

CFunK
Apr 4th, 07, 09:21 PM
Steve,

Good question. I will measure tomorrow and post the measurements today as compared to last July when I had them de-arched.

If I had to guess I would say "no" and I put more miles on my car a year than most guys around here.

sixty9five55
Apr 5th, 07, 07:03 AM
Where do you have the springs de-arched? This is something I need to do to my car as well. I would like the back lowered about 1.5-2". maybe getting the de-arched is the answer, instead of lowering blocks.

CFunK
Apr 5th, 07, 09:37 AM
I measured all 4 corners and the numbers are the same as last July. They haven't settled one bit.

I had my springs de-arched at a driveline shop here in ATL. The reason I went with a de-arch instead of lowering blocks is I didn't feel safe pushing the 3 leaf springs further out of the mono perch with lowering blocks.

You can see here that one leaf is already out of the perch, adding a block would push more of the spring out of the perch. Some say it is OK, but I didn't want to take the chance.

http://www.funkconsulting.com/67camaro/new_springs/spring1_lg.jpg

sgreen2
Apr 6th, 07, 08:47 PM
Funk, Thanks for going to the trouble of measuring and all. Seeing that I have NO extra money right now, I went for the approach that wouldn't cost me anything first. I removed the bottom two (shortest two) springs from the leaves and put them back on the car. It definately sits lower now and may be just the right height! I won't know for sure till I get the engine, tank, and interior back in the car though. I am curious to see how it drives this way.

pdq67
Apr 7th, 07, 10:04 AM
I bet she will be too soft back there..

And if you are worried about the space, then make some spacers, b/c I'm going to when I finally get off my dead-as- and finish my car.

pdq67

forttusken
Aug 22nd, 07, 12:48 PM
What have you guys payed for de-arching? My springs are too high even with 2" lowering blocks since I took about 100 lbs off the car and I never cared much for using lowering blocks.

Strick
Aug 22nd, 07, 10:08 PM
I found this opposite of my car. My car definitely dropped the 2" that Hotchkis advertises. I replaced the mono with their 3 leaf springs and it was 2" lower. I also did not add the upper or lower pad. Just a thought, but if you added a pad on top of the springs it would move the rear end UP in the arch of the spring and should lower the car, right? It is worth a try, just move that pad from the bottom of the spring to the top (between the spring and the rear axle housing).

stmeljes
Aug 23rd, 07, 09:01 PM
I have the multi leaf...I think 5 leaf..Can I take out the bottom two and lower it that way???

stmeljes
Aug 24th, 07, 10:03 AM
I have the multi leaf...I think 5 leaf..Can I take out the bottom two and lower it that way???

ANYONE??

Silver69Camaro
Aug 24th, 07, 01:39 PM
I have the multi leaf...I think 5 leaf..Can I take out the bottom two and lower it that way???

In a way yes, because you are lowering the spring rate. You'll bottom out easier, too.

The correct method is de-arching or replacement.

Strick
Aug 24th, 07, 01:41 PM
You know what I may have it wrong. Putting a spacer in between the axle housing and rear end will move the rear end UP into the arc, thereby moving the wheel further UP in to the wheel well, which effectively lowers the car, right? Draw a picture of the wheel well, rear axle, and arched spring - move the axle up and down in the arc, and see what happens. To me the car will be lowered.

(___) vs. (_-_)

johnny67
Aug 24th, 07, 06:58 PM
:beers:put some weight in your trunk. that will lower it and not cost you$$ except maybe a bit of gas.:beers: