 |
 |
For a drag car, one big bonus found on several of the aftermarket a-arms is a built-in, adjustable travel limiter. Instead of messing with things like spacers and big traction bar snubbers, the Autofab upper a-arms are equipped with large ½-inch fine thread bolts, complete with jam nuts. We asked Autofab’s Rob Hamilton about the adjustment process: “Generally, cars with slow elapsed times need more suspension travel. Quick ET cars need a lot less travel. Cars with a Powerglide tend to want more travel than something like a Turbo 400. You have to test each setup, but the adjustable limiter makes it easy”.
One more point to ponder: Most of the road race style front a-arms have mounting tabs for front sway bars. Front sway bars are just excess baggage on a drag car. Because of that, a-arms intended for drag racing, such as these don’t have provisions for the sway bar bracket. You’ll typically find though that non-drag race a-arms don’t have suspension travel limiter provisions either.
 |
 |
Something important to me is “serviceability”. For example, if a ball joint goes south (and they do), how much trouble is it to replace? We asked those questions too. In this case, the bolt-in upper ball joint is a stock GM piece for a G-body. Ditto with the press-in lower ball joint. Replacement hardware is as close as your local auto parts store. To me at least, that’s rather important.
Source |