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Old 11-13-2011, 01:03 AM
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1967 Camaro question about leaf springs

Ok I need help guys. I just registered and I have a question. Let me tell you my car specs so you will know going in. I have a 1967 Camaro. It has a 350 just built in march, performer rpm cam and performer rpm intake, edlebrock 650 carb, gm vortec heads app 380-400hp believed from builder. I have a muncie 4 speed manual. I have a gm 8.2 10 bolt. The housing is original, with new axles, new true track posi new detroit eaton mono leaf springs and traction bars. The rear end as you can see is all new. I have a question (or 2). 1) I notice that about once a month i have to tighten my leaf springs at the rear of the car, not the front just the rear, they seem to work themselves loose after about a month. I do get on it pretty good, because I built it for that. My question is, is this caused by the extra torque?, is this a problem? I was told by some that its ok, just monitor it and tighten as needed. Others have said the mono leaf set up will snap and not hold up to the power. The springs are brand new, and I didnt think at the time I could put multi leaf springs on because the old ones were mono. The detroit springs were rated pretty high (I think), and changing to multi leaf was a job I couldnt do, and was told its a big job because the housing is set up for mono. 2) next question. when I am in first geear, and driving slow, if i push the clutch is, it sounds and feels like my drive shaft and rear end are clanking alot, and the car wants to surge forward like surge clank, stop, then all over again. Its hard to explain but it only started doing that after the true track was installed because now I have a constant posi all the time. I was also told its something I have to deal with, just asking an opinion, maybe others have the same set up. I am mostly worried about the springs and hope all is well. The last thing to note is the engine is getting pulled and made into a 383 this summer, so I will have more torgue and hp. I want to keep the same rear end set up because I have alot invested in it. Thoughts? and thanks

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Old 11-13-2011, 07:32 AM
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Old 11-13-2011, 07:43 AM
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lock nuts ?

I don't know about yor camero, I just got to ride in my brothers camero and only drove it once. A lot of the fasteners were one time use. Nuts with built in washers and a crimp on the nut to grip, and the bolt threads were distorted when tightened. The air powered wrench that tightened the steering rack nuts on the Mustang II in the factory crimped the nut after reaching torque, It was a big heavy monster to use. Some of the factory repair standards said to use locktite on the threads when reusing fastners, some said to use all new fasteners, Mabe, you can check your U bolts Nuts use locktite and lock washers and retorque after a quick blast to settle things in. Preload on traction bars can keep you from getting proper torque if they are hooked up when torquing the U bolts.
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Old 11-13-2011, 08:18 AM
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Old 11-13-2011, 04:01 PM
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yea i can add some lock nutts, my question was about my rear end set up, if some one knows the monoleaf set that I have, and if it will stand up to a 383. I have a good set up, I thought, all new and tough just asking thoughts on that
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Old 01-04-2012, 08:06 PM
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67 Camaro leaf springs

Quote:
Originally Posted by k9arko
yea i can add some lock nuts, my question was about my rear end set up, if some one knows the mono leaf set that I have, and if it will stand up to a 383. I have a good set up, I thought, all new and tough just asking thoughts on that
(www.eatonsprings.com/monoleaf.htm) I read this article from Eaton spring on their website. Pretty scary!. Now really think about this. I have a 1967 Camaro with a big block 454 motor. I replaced the leaf springs when I restored the car with the factory mono springs and all new heavy duty hardware. I have ran it at the strip and drove on the street. No problems. I saw an ad for the Hotchkis sport springs which is a multi leaf spring and bought them. I just recently bought a set of Caltracs. When I removed my Hotchkis springs and inspected the rubber pads I noticed the pads were tore where the pin in the leaf springs are centered. So to fix this problem I purchased a steel shim kit from Calvert racing to replace the rubber pads. I tack welded the shims to the spring perch and reinstall the rear. Seems like a better idea. OK now on the 8.2 rear use it until it breaks because I sure as you add power it will. You will at that time have to decide what type rear to replace it with. Me, I would use the Moser 12 bolt. I am just a 59 year old individual with my opinion.
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Old 01-05-2012, 02:12 PM
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I would not run a mono leaf in a vehicle with any real power without some sort of traction device, either a good slapper bar (one that the front of the bar contacts the spring eye), or better yet, a Cal-Trac or Slid-a-Link.
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