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.

Re: rear housing moving ?
 

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

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'

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.

Re: rear housing moving ?
 

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.

Re: rear housing moving ?
 

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

Re: rear housing moving ?
 

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 .

Re: rear housing moving ?
 

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?

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.....

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.

Re: rear housing moving ?
 

When I ran mono springs in the 70's in C/SM we drilled a hole thru the spring. A cobalt bit is the way to go, or you can sharpen a regular one over and over. If I remember I used an alien head bolt with the head on top into the spring perch. Used a threaded piece of tubing as a bit on the bottom. This way it was pinned in the top an bottom

Re: rear housing moving ?
 

thanks for the replies , a cobalt drill bit is the answer. I knew I could count on Class Racer.

Re: rear housing moving ?
 

It wont take much to drill through. We used 1/4 or 5/16 allen head bolts for locating pins.

Re: rear housing moving ?
 

Drilling safes open I have bits that will work. You can buy them publically. They look like a masonry bit but made for hard plate found in safes.

Re: rear housing moving ?
 

To bad you live in Phoenix,if you ever come up to Canada PM me...lol gsa612

Re: rear housing moving ?
 

Tell what size and I can mail it to you. They come 1/4,5/16,3/8,1/2. Don't know the cost to mail in Canada

Re: rear housing moving ?
 

Carbide or Cobalt drill bits----tungsten bit if you can find one ---theses bits are very brittle so use care when handling or using them---- VERY slow speed lots of oil or coolant,----- drill press only NO HAND DRILLING so as to not work harden the material or ruin the drill bit-- DO NOT RUSH TAKE YOUR TIME doing it--better yet put it in a mill and use a carbide cutter to make the hole --FED 387

Re: rear housing moving ?
 

https://www.mscdirect.com/

https://www.travers.com/

Re: rear housing moving ?
 

Or you can buy a set of Calvert split mono leaf springs. They have the locating bolt that goes thru them.

Re: rear housing moving ?
 

There is a company called Flex Form, they make composite springs that will save weight, they weigh 8lbs a side and last for ever. Just a suggestion. About $400 for the pair.
Casey Miles
Stock