Trans crossmember delete
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Senior User
Joined: Jul 2010
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Trans crossmember delete
I have swapped a CV IFS into my 59. I had to get the AOd out of it so I cut the original trans mount out. I fabbed my own trans mount that bolts to the tail shaft. Is it ok to leave the original out? Most cars I have worked on don't have a chassis brace under the trans.... I'll weld something in it is a safety issue.
Elder User
Joined: Dec 2007
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The original crossmember, if it's the one I think you're referring to, also stiffens the frame where the original leaf springs. That the one? If you don't have leaf springs, have enough reenforcement for the cv ifs and have a mount for the trans, I don't see a need for it. That's just my opinion. I'm sure some with more experience doing IFS installs will weigh in
Elder User
Joined: Dec 2007
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That trans Xmember you made is HUGE!!! Nice work! I'd have no problem pulling out the original. In fact it's almost imperative. If you leave it in place, Murphy's Law says your trans will die right away. Make it easy to pull and you'll never have trans problems
More Turbo
Joined: Oct 2009
Posts: 708
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From: Pahrump, Nv.
There are 3 cross members on your frame. One in the front, the middle,(bell housing) and one in the rear. Are you talking about the Bell housing cross member? They are all important other wise they would have not designed it that way. I have seen people take out the bell housing C. member out and that is way to much space with no bracing. Your frame will flex with the C. members. So imagine what it would do with out it. Hope that's the one u r talking about.
Jonesy
Jonesy
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Joined: Dec 2007
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There are 3 cross members on your frame. One in the front, the middle,(bell housing) and one in the rear. Are you talking about the Bell housing cross member? They are all important other wise they would have not designed it that way. I have seen people take out the bell housing C. member out and that is way to much space with no bracing. Your frame will flex with the C. members. So imagine what it would do with out it. Hope that's the one u r talking about.
Jonesy
Jonesy
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Senior User
Joined: Sep 2006
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From: Cocoa, FL
The c-channel frame rails are really not that strong without the cross members. That's why a lot of people box the frame when they do modifications. I swapped in a 390 FE that required removing the trans cross member. I added a deeper cross member below where the original was. Fabbed it from an old c-channel rear bumper. Provided some strength and a place to run the right front brake line. Just didn't feel comfortable not having something there.
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More Turbo
Joined: Oct 2009
Posts: 708
Likes: 28
From: Pahrump, Nv.
Good call on the c.v clip cross member. vntgtrk I forgot all about that. Glad somebody is taking up my slack. I was trying to show how important the cross members are.
Frankcowan is correct about the boxing the of frames. Good thinking on still using the original c. member and modification.
Frankcowan is correct about the boxing the of frames. Good thinking on still using the original c. member and modification.
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