Fatman Fabrications - Bolt In Fatman's IFS - Tech

The crossmember and spring tower bolt on using the same hardware. As you can see, this duplicates the general idea GM used and does a good job of making the whole area strong and clean-looking at the same time.

We used the large flat washers on the inside of the framerails. This provides a means to spread the force to a wider area and makes the crossmember more bulletproof.

Especially with the large lower A-arm bolt, all the hardware requires a liberalnapplication of anti-seize to prevent major problems with galling, cold-welding, and corrosion jamming later.

The lower A-arm gussets had to be located so the hardware for the rack has clearance. Make sure, because moving it later is a real bear!

Weld the gusset reinforcement all the way around-remember to wear your welding gloves and mask. You may prefer to do this on the bench prior to installing the crossmember.

Yes, that rear A-arm bolt gets close, but that's fine. Start the nuts, push the A-arm and hardware toward the rails, then use end wrenches to tighten the hardware down.

Pop the bushings into the rack like this. The brim of the top hat- like bushing must be sandwiched between the rack and the frame.

We started the rack bolts (slathered with anti-seize), then pushed the whole thing to at once.

The unique stainless steel arms have these clever mount pads that adapt for different applications and for different spring/ shock setups, including the coilovers used here and air springs.