69 Ragtop Springs - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

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post #1 of 27 (permalink) Old Jan 26th, 02, 04:17 PM Thread Starter
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I've been getting some conflicting stories so I thought I's ask the experts here.
Did all 69 convertables have mono leafs or did the SS models still get the multileafs?

Would there be any ride quality differences between the mono and multi if the spring rates were the same (or close)?

Thanks
joe

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[This message has been edited by Joe G (edited 01-26-2002).]
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post #2 of 27 (permalink) Old Jan 26th, 02, 07:29 PM
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Joe, I believe any SS car 68-69 recieved the multi leaf springs. Those models would also have come with 12 bolt rear ends.

A single leaf spring would probably be a lower rate spring and since it would come with a lighter 10 bolt would have less unsprung weight. This would have made for a slightly better ride primarily over bumps.
But not considering rear axle rate the slightly stiffer multi leaf springs were plenty soft for the street and would not be that much stiffer riding.
The multi would be less prone to wheel hop and is a progressive rate spring where the mono is not. The progressive rate will limit travel somewhat and help prevent bottoming out as often.
Just my guess.
David

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post #3 of 27 (permalink) Old Jan 27th, 02, 06:22 PM Thread Starter
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Thanks, David. I guess the only 12 bolt that had monoleafs would be 67? From what I've read here I think all 67's had monleafs.


Thanks again
joe

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post #4 of 27 (permalink) Old Jan 28th, 02, 10:38 AM
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Sorry Joe G, ALL convertibles have mono springs no matter what it was and what it had for a rearend.

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post #5 of 27 (permalink) Old Jan 28th, 02, 01:18 PM
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Not true! If a '69 convertible had a factory 350 (not just SS350) or a 12 bolt it got multi leaf's...

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post #6 of 27 (permalink) Old Jan 28th, 02, 04:55 PM Thread Starter
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I'm so confused!!!

joe

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post #7 of 27 (permalink) Old Jan 28th, 02, 05:15 PM
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Joe,

Sorry we didn't bump into each other in Turlock.

CRG is a very factual source of information.

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post #8 of 27 (permalink) Old Jan 29th, 02, 03:50 AM
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I still disagree. They were concerned about the body flex and used only mono. I know there are a lot of 12 bolts that came with mono perches.
try contacting Eaton detroit springs. They claim to have all of the blueprints and specs from these years. I bet they can confirm this one way or another. Let us all know!

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post #9 of 27 (permalink) Old Jan 29th, 02, 07:12 PM Thread Starter
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Thanks for the confusion!

Dennis, sorry we missed you and CJ. I still need to hook up with him. We didn't find any treasures. I did spend $9 on a couple of trim pieces!

joe

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post #10 of 27 (permalink) Old Jan 30th, 02, 05:51 AM
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69 verts only used mono when the engine size was less than 350 ci, in other words 6 cly and 307 V8's. I believe this to be true on coupes also.
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post #11 of 27 (permalink) Old Jan 30th, 02, 06:55 AM
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69 with a 10 bolt = mono springs
69 with a 12 bolt = multileaf springs.

Doesn't matter if they are convertibles or coupes. There are about 20 different multi leaf spring rates and at least a couple of mono leaf rates, and convertibles will have a different rate than a comperably equipped coupe, but the above rule holds.

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post #12 of 27 (permalink) Old Jan 30th, 02, 07:37 AM
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Mine is a SS350 and has monos. 10 bolt though.

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post #13 of 27 (permalink) Old Jan 30th, 02, 10:38 AM
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I currently own a 69 RS coupe with a 10 bolt posi and factory 4 leaf multi's, not a Z!!
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post #14 of 27 (permalink) Old Jan 30th, 02, 11:05 AM
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Monoleaf and multileaf springs did not differ between coupes and convertible

67's - only monoleafs.
68's - multileafs in L30/M20, SS and Z only (eg 12 bolts only)
69 - 302, all 350's, and BB got multileafs, independent of what axle they received. So the L65 (350 2 bbl) 10 bolt cars also got the multileafs.
Most 68-9 Z's were 4 leaf and most other multileafs were 5. But certain option combos could cause a Z to have 5 and non-Z to have 4. The spring tables bear this out.

Red,
Something doesn't sound original there. Powerglide car?

Tracy,
What engine is in that car?

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post #15 of 27 (permalink) Old Jan 30th, 02, 11:44 AM
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Kurt, 350/255 2 barrell 618 block
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