rear housing moving ?

Mike Savelle · 07-19-2019, 03:08 PM

1967 Camaro mono leaf with slide a link, is there a fix to stop it moving ? mono leaf only has pin locater on bottom.

Hacksaw · 07-19-2019, 03:33 PM

The pin should go into the housing bracket on your rear.

Mike Savelle · 07-19-2019, 05:10 PM

there is no pin on the rear end side , only on the bottom. the spring is smooth and the rear end housing is smooth , therefore its just the clamping force that holds it there . didn't have the problem until we went 1.30s in 60'

4284spd · 07-19-2019, 05:21 PM

Should always be a pin through the leaf and a hole in the perch. Its the way they have always been done.

Mark Yacavone · 07-19-2019, 06:18 PM

Quote:

Originally Posted by 4284spd

Should always be a pin through the leaf and a hole in the perch. Its the way they have always been done.

Except it's not that way on GM factory mono's.
I had them on my Omega, but the weight exceeded their limit by about 600 lbs.
I took a set of carbon fiber springs from an Astro Van, and sawed both eyes off them and placed them under the mono's. You can drill that nub out with some good bits and a stout drill press and lots of oil. Then you can hold it all together with tradition round top spring bolts.

Billy Nees · 07-19-2019, 06:46 PM

Quote:

Originally Posted by Mark Yacavone

You can drill that nub out with some good bits and a stout drill press and lots of oil. Then you can hold it all together with tradition round top spring bolts.

Yes, SOME, not one good bits and a stout drill press and LOTS of oil AND patience.

ss3011 · 07-19-2019, 07:06 PM

Quote:

Originally Posted by Mark Yacavone

Except it's not that way on GM factory mono's.
I had them on my Omega, but the weight exceeded their limit by about 600 lbs.
I took a set of carbon fiber springs from an Astro Van, and sawed both eyes off them and placed them under the mono's. You can drill that nub out with some good bits and a stout drill press and lots of oil. Then you can hold it all together with tradition round top spring bolts.

There must have been some different Mono leafs available , because the ones I have , which I believe are OEM GM , have a through bolt with the locating pin to the top .

Mark Yacavone · 07-19-2019, 07:19 PM

Quote:

Originally Posted by ss3011

There must have been some different Mono leafs available , because the ones I have , which I believe are OEM GM , have a through bolt with the locating pin to the top .

Never saw any. They only used them for a few years. Mostly on 1st gen. cars, including Chevy II's, which were different. Possibly Landrums or Camaro re-pops?

Rich Biebel · 07-19-2019, 07:38 PM

Had a similar problem in 1970 with I think multi-leafs, but I'm not sure. Might have been mono's... Lakewood slapper bars with J bolts and wedge plates to change pinion angle.

Made longer bolts thru springs with custom made pins that dropped into Lakewood bars. Allowed bars to pivot without coming off pins...Those pins were probably 3/4" diameter and threaded to screw onto those thru the spring bolts......

Tough to remember exact details but I know it worked...

Rear moved, tire hit and wore a groove before the fix.....

Tom Broome · 07-19-2019, 09:51 PM

I'm like the others. My 1967 Camaro and ChevyII had monoleafs with a pin welded on the bottom of the spring. I had access to a carbide drill bit and drilled both and installed a socket head cap screw through the spring. But, I also changed the housing perches at the same time to the early style-GM/Ford/MoPar perches. Is that okay in Stock?

My cars still had the factory perches that located from the lower shock plate with a rubber insulator between the housing and spring. I've always felt the pin needs to be on the housing side of the spring. But I was exposed to big truck spring issues as a teenager.

07-19-2019, 03:08 PM	#1
Mike Savelle Member Join Date: Dec 2001 Location: Ontario Canada Posts: 369 Likes: 125 Liked 7 Times in 5 Posts	rear housing moving ? 1967 Camaro mono leaf with slide a link, is there a fix to stop it moving ? mono leaf only has pin locater on bottom.

07-19-2019, 03:33 PM	#2
Hacksaw Senior Member Join Date: Sep 2016 Posts: 880 Likes: 200 Liked 306 Times in 172 Posts	Re: rear housing moving ? The pin should go into the housing bracket on your rear.

07-19-2019, 05:10 PM	#3
Mike Savelle Member Join Date: Dec 2001 Location: Ontario Canada Posts: 369 Likes: 125 Liked 7 Times in 5 Posts	Re: rear housing moving ? there is no pin on the rear end side , only on the bottom. the spring is smooth and the rear end housing is smooth , therefore its just the clamping force that holds it there . didn't have the problem until we went 1.30s in 60'

07-19-2019, 05:21 PM	#4
4284spd VIP Member Join Date: Mar 2008 Location: Longmont Colorado Posts: 1,708 Likes: 848 Liked 4,137 Times in 950 Posts	Re: rear housing moving ? Should always be a pin through the leaf and a hole in the perch. Its the way they have always been done. __________________ Bob Smith

07-19-2019, 07:38 PM	#9
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: rear housing moving ? Had a similar problem in 1970 with I think multi-leafs, but I'm not sure. Might have been mono's... Lakewood slapper bars with J bolts and wedge plates to change pinion angle. Made longer bolts thru springs with custom made pins that dropped into Lakewood bars. Allowed bars to pivot without coming off pins...Those pins were probably 3/4" diameter and threaded to screw onto those thru the spring bolts...... Tough to remember exact details but I know it worked... Rear moved, tire hit and wore a groove before the fix..... __________________ Rich Biebel S/C 1479 Stock 147R Last edited by Rich Biebel; 07-19-2019 at 07:41 PM.

07-19-2019, 09:51 PM	#10
Tom Broome Member Join Date: Sep 2009 Posts: 144 Likes: 80 Liked 86 Times in 43 Posts	Re: rear housing moving ? I'm like the others. My 1967 Camaro and ChevyII had monoleafs with a pin welded on the bottom of the spring. I had access to a carbide drill bit and drilled both and installed a socket head cap screw through the spring. But, I also changed the housing perches at the same time to the early style-GM/Ford/MoPar perches. Is that okay in Stock? My cars still had the factory perches that located from the lower shock plate with a rubber insulator between the housing and spring. I've always felt the pin needs to be on the housing side of the spring. But I was exposed to big truck spring issues as a teenager. Last edited by Tom Broome; 07-19-2019 at 09:54 PM.