installed my pacesetters, fitting problem
, or bottle jack and push up the section of the support a little,maybe about a 1/4", between doing that and poly mounts mine has no more clearance issues.It's much easier to do this before installing the Y pipe, then after, ask me how I know...
I would advise taking out your temp sensor. B/c I didnt and broke it. Save some hassle and take it out just to MAKE SURE YOU DONT.
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Here are a few of my pics, from right after the install...




At that stage of the game I should have just beat that bi*ch up but didn't then had to go back ater and do it...
Last edited by 1SlowFormula; Dec 18, 2006 at 04:59 PM. Reason: fixing dead link
Dont hack it, get the correct stuff.
Or at least flatten the pipe, dont shim the trans down, bend the header, nothing like that... They will all cause other problems.
Except for the poly trans mount, they're about 1/8" too tall, shim the trans crossmember down 1/8" off the body to correct for it.
I installed headers, looked at the clearance above and started posting just like you did..
then I tryed to put the y-pipe on and got it on and lined up and there looked like thre was good clearance...
test drove the car and the y-pipe was banging...
decided to change all my mounts to poly and when I pulled the tranny mount I let it hang down a bit (still had the dead motor mounts in) and banged on that cross member, only a little like 1/8-1/4" or so, changed all the mounts and have never had the banging since, even gettign good launches at the track...
Dont hack it, get the correct stuff.
Or at least flatten the pipe, dont shim the trans down, bend the header, nothing like that... They will all cause other problems.
Except for the poly trans mount, they're about 1/8" too tall, shim the trans crossmember down 1/8" off the body to correct for it.

yes it is pure talent. I just had a few bolts holding them up and they come loose and broke it.
Good luck, I know how bad it feels to have a problem like that after that much work.
I had the thing hitting the floor with the stock mounts, did try bending it downward some by wedging a 2X4 against the floor and jacking up the trans tailshaft... Didnt really seem to move though.
I think trying to bend the header got me about a 1/8" more clearance, then shimming the trans cross-member down an 1/8" got me a total extra of 1/4"...
That made the hitting almost completely go away except for during hard clutch dumps.
Then I just switched to solid motor mounts.
Guess I went the 'easy' way around the problem by eliminating flex in the drivetrain.





