MAGNUM FORCE SUSPENTIONS

If you aren't totally sold on coilover suspensions I woud look at member 72bluNblu's posts and see what you can do with a torsion bar suspension. I did and have just about everything to start putting my Valiant's suspension together. It took k-frame welding, big torsion bars, reinforced lower control arms, big sway bar ..... There are lots of threads on that and I would just recommend looking at 72bluNblu's comments.

As far as coilover suspensions go, I have the Alter-k-tion and after comparing prices it's about the same cost as a full tilt torsion bar system WHEN you figure in a Borgeson power steering system and a brake kit. You'll get a rack and pinion and Wilwoods with the Alter-k-tion.
Remember to compare with QA1's full system. Probably the value leader in building up a torsion bar suspension if you're not already starting out with some good parts.

Reilly Motorsports and Magnum Force aren't the only players in the game either. Check out HemiDenny.

Magnum Force doesn't have the best reputation and frankly, it scares me. Unless you are going to do a lot of chassis stiffening and reinforcement to make up for it's weak areas it seems kind of sketchy the way the coilovers are supported at the inner fender. I'm not really impressed with their Upper control arms either.

This is all for you to decide for yourself but I will tell you I'm very impressed with my Alter-k-tion and I do believe I'll be very impressed with the torsion bar system that I put together based on 72bluNblu's and Peter Bergman's (Bergman Autocraft) input.
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