LCA pivot shaft with coilovers

Cant find anything with the search, but years ago there was a member who modified the pivot shafts to work with coilover shocks. It was basically a fail safe to keep the shaft in place because there will be no t-bar holding it in position. Anyone recall this or who did it? It may have even been on BBD back in the day.

He made one set and never heard from him again. Before my Duster was wrecked my son was pulling it in to install a k member we lightened and were working on installing a Cage bearings and a Torington bearings in place of a bushing with a fastener. to hold the a arm on.

Using a factory set up the torsion bar does not hold the arm in place it is the factory rubber un-ripped bushing. Once it rips it moves front to back the same as the poly bushing allows it to when they are installed. He was doing it to secure the arm and let the suspension work with less resistance. He had the coil over design done by milling off the complete torsion bar socket, Boring and applying the system mentioned above.

I wanted to keep the bar so it could be applied to cars without modifying the shock tower and using the torsion bars.

Heim ends were being used for strut rods and the upper arms. This will really hold the suspension more secure and faster lift on a race car. But would cause greater road feel in the car on the street with no cushion. Some of the after market struts with swivels we've seen would move up and down but did not allow enough twist for suspension movement. The bar has to turn . not only move up and down. If you look at the pictures you can see the Heims are turned allowing movement tin the other direction.

Here is the K member and struts. he never got to finish the lower arms. The lowers were not finished but will be when we start on the new Duster . The cage bearing was holding side movement . The Torington bearing was holding front to back. It was a very simple design to apply to coil overs but he was working on using it with the T-bars. We never got to install it. I will post them after we use them.

We know there are complete suspension out there where coil overs are being used. We wanted to make them to use with factory parts replacing rubber that rips or poly that are absolutely worthless. he was using all factory parts for guys to install them on there cars without major mods. The struts below are OEM with Heim joints threaded right on the OEM rods

cu440da said:

Cant find anything with the search, but years ago there was a member who modified the pivot shafts to work with coilover shocks. It was basically a fail safe to keep the shaft in place because there will be no t-bar holding it in position. Anyone recall this or who did it? It may have even been on BBD back in the day.

Click to expand...

I can't think of his screen name, he made a few sets, they didn't sell so he closed up shop. You might check with HemiDenny, he was selling something similar. Gerst was as well for a while but stopped again due to lack of interest. Seems most people end up going with the full K frame setups when going to coilovers vs going half way

You can chuck the pin in a lathe, drill and tap it for a 3/8 bolt. Then use a bolt with thick washer to retain the LCA. You'd probably want to weld the 'adjuster socket' to the LCA as well since it wasn't designed to pivot on that particular metal-to-metal interface.

I knew I had seen a manufacturer with the LCA for t-bar eliminated but couldn't remember for the life of me and nothing popped up on a Yahoogle search. Hemi Denny has it. Thanks for the tip.

I believe this is what you were thinking of

HDK offers a thru pivot shaft and bolt on / removable rear brace with the HDK tubular LCA. The HDK tubular LCA assembly offers several advantages when used in a coil over application.

A) the lower shock mount is moved slightly outward for increased coil spring clearance
B) assembly utilizes a solid steel, thru pivot shaft with a 100% bolt on / removable rear brace putting the LCA in a double shear
C) eliminates the no longer needed LCA torsion bar mechanics.
D) works with factory or aftermarket struts

available with small (some 63-70 models) and big (most 72 and up models) ball joint upper control arm assemblies.....with street friendly adjustable poly-ends or race proven heim ends.

Hemi Denny- I had decided to go with your LCA's. Just haven't made the phone call yet. I'll probably get a hold of you Mon or Tues. Thanks.