Actually the Rear track on the 126 is only slightly wider and is accounted for in the wheels. All parts, IIRC, are interchangible with the 123. The front on the 126 is about 2" wider and I believe most parts there are interchanbilbe with the 123 as well, they are just pushed apart to accomodate the v8s.

I was not aware of the antisquat feathure and am wondering how that might work considering the parts are interchangible and use all the same pivot points?

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.