I have both the spohn LCA relocation brackets and adjustable LCAs installed on my car (84 TA). I was just wondering if anyone has experience with both these parts, so I can get an idea of what I am shooting for when I adjust the LCAs.

I am assuming its gonna be different per car, but I would just like to get an idea before i start playing with it.

 

The adjustmants in the LCA's are there to line things up properly- it is mainly another alignment tool that you never had stock. Best you can do yourself is install them at equal lengths and let the alignment shop fine tune them.

Mainly their attribute is when you equip the car with an adjustable pinion, AND you have previously added relocation brackets- what happens is the taller swing radius from the rear LCA mount to the pinion adj will rotate the axle backwards or fowards in the wheelwells. (stock rear LCA mount: move pinion up 1* wheel may move backwards 1/4". Relocation brackets installed and lowest mount hole used: move pinion up 1* and the wheel may move backwards 1")

let me give you an example. Lets say you have added the relocation brackets and LCA's first. Next, a few months later you add an adjustable torque are. then next year you decide to lower the car. Final outcome you would have to rotate the pinion up to compensate for the ride height change. This will move the entire axle backward extending your wheel base. Now if you didn't have adj LCA's, you could not shorten the wheelbase back up to proper distance and most likely have a misalignment problem with your rear springs rubbing the back side of the upper cans.

These cars are also getting older by the year and things flex and bend. ADJ LCA's will allow your alignment mechanic to set the rear axle to track straight with the car using those adjustment points (also if the car has ever been wrecked and slightly tweaked)

 

Well i have LCA brackets as i have said, and lowering springs, but nothing seems to be rubbing in the back.

I was under the impression that certain adjustments could increase off the line tracktion/tire bite for 1/4 mile.

so if nothing is rubbing, then should I assume it would be better to just leave it alone ?

 

Unless you know how to correctly check driveshaft yoke endplay into the tailshaft throughout suspension compression, I would not advise shortening them.

 

well i took a closer look today at the rear, and it looks (just eyeballing it) that the rear is shifted an inch or so toward the back of the car... would it be safe to bring it back to where its supposed to be ?

also, could having it shifted toward the back of the car cause a loss of traction (drag racing)?

 

your going to need an adjustable panhard bar to get the rear centered under the car.

2 things to watch out from my experience, rear noise around 40 mphs due to the poly bushings, and spring rattle when going over crappy roads, due to the shorter spring length.