Yup...they take the place of the transverse rear spring. Takes some weight off the rear, and adds some adjust-ability to it. Not aware of any set-ups that allow JUST the replacement of the standard shocks with coil-overs....everything I've seen has requires some other mods to do it...which is one of the reasons they weren't used to start with.
Are you looking at doing this?

______________

Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

I have considered it. I have bilstines shocks on it front and rear with 7/8" swaybar and a 350 lb. rear spring. Needless to say it handles quite well for racing but the ride is very very firm on the streets. Maybe  sofening the ride may help? Getting old .

Wouldn't a fiberglass rear spring be lighter than steel coilovers?

______________

   

I installed the glass spring sometime ago and it wasn't all that lite. It isn't nearly as heavy as the original by any means.

You would need to add a panhard or watts link to locate the axle if you ditched the leaf spring. It locates the axle from side to side. The coil over would be a superior way of controlling the axle though. About 15 spring weights to pick from, rebound and compression adjustment knobs if you went aluminum. 18 lbs total for the pair with 250 # springs. I sell this conversion for gen 1 camaros, early Mustangs etc. Of course they are solid axle but still need the panhard. You can also swap to aluminum adjustable shocks....same shock as the coil over just without the springs. It would be a drastic improvement in compliance. In the big pic, do the front first...greater impact. I know...I'm new here...but I do suspension and brake upgrades for a living.
Dave

______________
My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

We Love having experts on board.  Another welcome to you Dave.

______________
My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

All good information except the part about adding a Panhard Bar or Watts link.  The half-shafts and the strut rods control the frame side to side.

______________
1973 BB 4-Speed Coupe Project Car

Thanks, I have yet to crawl under mine and study it. That actually makes it very easy to do a coil over conversion. Do you have an extended shock length eye to eye measurement to add to the conversation?

Thanks,
Dave

______________
My Christmas present to ME! Bought Sat 11-30-2013. 72, 350 4 spd, Silver with blue interior...Can't you just hear Pablo Cruz playing in the background?

|UPDATED|12/5/2013 9:07:52 PM (AZT)|/UPDATED|


______________
1973 BB 4-Speed Coupe Project Car

Here are some pics of the Van Steel rear Coil-Over setup:

|UPDATED|12/5/2013 9:20:14 PM (AZT)|/UPDATED|


______________
1973 BB 4-Speed Coupe Project Car