[FASTFATBOY]

Do I need both? I bought the UMI frame connectors and then came across a good deal on a Wolf 4 point and belts. It's a bolt in bar.


I wouldn't think I need both, but as always my ears are open. Weight is my enemy.

[Blainefab]

In most cars, the bolt in 4pt bars are supported only by thin sheet metal in the rear seat footwell, and the rear wheelhouse. The 4th gen Fbody, tho, has a thick steel stamping that forms the rear LCA frame mount, and the Autopower 4pt main hoop is anchored on that thick steel. I don't know about the Wolfe, but their drag 4pt has a bend or 2 in the backstays, which is weaker than a straight tube. Neither Autopower or Wolfe have the backstays land in a good place.

A 4pt that is bolted to the thick LCA mount is a reasonable addition for a street/track car, and will anchor harnesses and seat. Needs high density padding, and may need some customization for correct harness angles. Rear seat should be removed, or otherwise disabled - people should never ride back there with the steel.

A bolt in should not be welded in - there will be no improvement in strength, the welding will likely weaken the OEM sheet metal.

This post has been edited by Blainefab: Apr 4 2011, 09:10 PM