Adjustable vs. Non-Adjustable Components - Help Please

[Madlock]

I'm in the process of accumulating the various components to shore-up my front and rear suspension to billet and tubular components rather than the factory stampings, add adjustable caster/camber plates, relocate the lower control arm mounts and reinforce the UCA mount - plus add-in a T-2R differential and a Watts Linkage.

 

How much "better" do I actually expect the car to handle and perform as a result? I don't know. I probably don't drive well enough for this esoteric an upgrade to matter beyond the Torsen and Watts Link. But for not TOO much money, I do enjoy having brand-loyal single-source best-in-class components. It's an anal-retentive thing.

 

That said, the only two variables in the equation are whether to choose an adjustable (versus fixed) Rear Upper Control Arm and Front A Arms. The cost difference is nominal, so I don't really care - but the "belt and suspenders" side of my brain tells me a solid component is inherently less prone to failure or going out-of-spec than an adjustable one.

 

So, unless I'm likely to derive a quantifiable benefit from being able to adjust either the Front A Arm or Rear Upper Control Arm, I may as well keep everything dialed-in to the intended geometry and make the most out of "less" being "more". However, even though I may not be able to fully appreciate everything they make possible, I figure the folks who designed them wouldn't have gone through the trouble if they didn't provide at least SOME potential benefit to SOMEBODY.

 

The second potential cause for concern I have comes from the item description for the Adjustable Front A Arms which notes they may be subject to greater noise (NVH) than OE components. What I DON'T know is "how much" more NVH in a real-world sense. I also don't know whether an Adjustable Rear Upper Control Arm may be subject to the same - though probably much less so.

 

Can anybody help me by offering a quick cost-benefit of adjustable vs. non-adjustable for the Front A Arms and Rear Upper Control Arms - in a "real world", "been there, done that" context? I realize they're both relatively easy things to un/redo, but that's just one more way I prefer "less" to "more".

 

Many thanks!

[1badshelby]

the adjustable rear upper control arm is a must if you plan on doing a 1 piece drive shaft. It is used to set the pinion angle.

[goldgus]

Not really sure thats true - I am running a 1 piece aluminum driveshaft on my "10 vert, and have not lowered the car. So pinion angle does not need adjusting. And i still have stock UCA.

 

I believe you need an adjustable UCA if you are lowering your car, or plan to lower it in the future.

[Cobras55]

Not really sure thats true - I am running a 1 piece aluminum driveshaft on my "10 vert, and have not lowered the car. So pinion angle does not need adjusting. And i still have stock UCA.

 

I believe you need an adjustable UCA if you are lowering your car, or plan to lower it in the future.

 

Not true....I'm lowered 1.25 in the front and just under 2 inches in back and my pinion angle is spot on at -2 degrees , adj. uca not needed here......Actually I have one for sale if any interested...