Thread: IFS alignment, best way to...

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I just went through all my pics of my new frame & MII crossmember for the IFS. I did not use anyones kit for this project I built everything from scratch. However, I did have a frame with a Heidts MII crossmember I took measurements from. The new IFS is based on a Hortons Evolution IFS and uses Kugel upper and lower control arms. I over killed the lower crossmember which measures 4x4, I could have easily gotten away with laying a 2x4 rail flat, 4" wide x 2" high.

When building the front crossmember and vertical towers for the spring hats, coilover shocks or air bags ( whatever you're using ) lay the lower crossmember and vertical towers back on a 5 degree angle. Everything you do now with your upper & lower control arms will automatically be at a 5 degree rake. Drill the holes in the lower crossmember, add bushing stock for the lower a-arms bolts and mount the lower control arms. The length of bushing stock and bolts will depend on whether you're using stock MII lower arms or tubular arms. Don't weld the bushing stock in at this time, let them slide freely in the crossmember. Wait till you've mounted your upper control arms and get everything properly aligned before welding the lower bushing stock in solid.

The 5 degrees for the spring hats, coilovers, etc. is also predetermined now from the vertical towers 5 degree lay back.

Take a look at my frame build on my project site, go down to the bottom of the page until you reach Aug 22/03 date and the frame build starts there. I didn't take any side view pics, but there is a couple taken at an angle and you'll be able to make out the 5 degree rack on the crossmember.
http://www.angelfire.com/super/1950bulletnose

I'm not very good at explaining tech stuff. I hope this helped.