Rear lower wishbone design

[Talonmotorsport]

If you have enough tube just make the bottom arms a square shape, it will save you hours of head ache in the long run. You will have to bend/force them back to the right size after welding any way as they pull with the book design. Martin Keenan uses the square design on his other cars and I'm not sure why he went down the diagonal design head ache route with the roadster? The only thing is to make the 'fish mouths' exactly right.