Competition Cross Members
Developed on the racetrack and fantastic for the street. This cross member ties the lower
control arms in with the chassis for more structural support; especially needed for Uni-
Body cars. A time-tested improvement incorporated during the Boss 302 Trans Am
336-101 1965-66 Mustang
336-1010 1967-70 Mustang and Cougar
I think it bolts to the frame rail and and the lower arm mount area. Would just be another part to help tie it all together. I've been thinking of making one or just buying it.
i have the competition crossmember installed in my '65 fastback. the competition crossmember is superior because it mounts to the lower control arms in addition to the framerails. the factory crossmember only mounts to the framerails.
i ran the global west suspension for one year before installing the competition crossmember. the handling improvement is drastically better with the competition crossmember.
there is a picture on my cardomain page that shows the underside of the motor and trans. you can see how the crossmember ties into the lower control arms.
this is an affordable ($150) and easy mod that pays HUGE dividends on the street or the track.
Thanks for the picture. It looks like there's a spacer between the cross-member and the LCA mounting point. Is that the case?
The reason that I ask is because I've been considering adding the '67 style square eccentrics for camber adjustment and I thought this crossmember would make that impossible if it bolted up flush. It looks like you could just machine the round tube spacer smaller and then slot the hole for the LCA inner bolt on the cross-member and it would work.
The the Do It Yourselvers, the Boss 302 Chassis Modification booklet has instructions on how to make one. If you have a welder and a drill, it's rather easy. It would be a bit different for a 65-66, but the principle is the same.
thanks for the kind comments. i could make up an answer to your question, but it really wouldn't be helpful to you. my friend at Performance Musclecar Ent. built the car for me. I am only good for some maintenance and changing parts i can see. most of the parts i ordered were things i saw, but first consulted him about.
from what i recall about installing the competition crossmember, no special parts were needed to install it. i know that doesn't exactly answer your question. i guess what i am saying is that it will bolt right up. as for the other stuff you talked about fabbing up, i have never heard of that stuff.
i will tell you that the people at cobra automotive are very knowledgeable and helpful. i recall one guy who helped me out with a few parts was named Scott. it's a small store, so i am sure you can find him. call and they will give you all the info you need. afterall, they build and maintain racecars first, and sell the parts they use second. they are a great resource.
on a sidenote, i was autocrossing today. a lot of other drivers commented that they could not believe how flat my mustang remained throughout the course. the crossmember is a big part of that.
You will need to reduce the width of the spacer by the width of the add on bracket and square alignment spacer. If you a want to get carried away, you can also weld a alignment bracket to the new cross member and use anther square alignment shim on each side.
i think running the compettion x-member with the eccentric eliminator kit work awesome together in that the bolt would be fit through both parts of the eliminator kit and the crossmember therfore making the whole unit almost solid in a way. the competition x-member uses an oblong hole so that the alignment is still adjustable as normal