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12-17-2011, 12:59 PM
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#1 |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Best transmission crossmember for exhaust clearance.
I'm installing an exhaust system and the stock transmission cross member won't allow me to tuck my exhaust pipes like I want them.
I'm looking at this CPP crossmember, but thought I'd ask if there's a better one that might offer more hight clearance. CPP Link
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. 
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12-17-2011, 01:07 PM
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#2 |
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Registered User
Join Date: Dec 2008
Location: Frisco, CA.
Posts: 68
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Re: Best transmission crossmember for exhaust clearance.
Early Classic Enterprises has this one.
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12-17-2011, 01:25 PM
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#3 | |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Best transmission crossmember for exhaust clearance.
Quote:
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe.
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12-17-2011, 01:35 PM
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#4 |
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Registered User
Join Date: Dec 2008
Location: Frisco, CA.
Posts: 68
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Re: Best transmission crossmember for exhaust clearance.
I don't have mine installed yet to give you a measurement, but this pic might help.
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12-17-2011, 02:33 PM
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#5 |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Best transmission crossmember for exhaust clearance.
Looks good for going over the top in your situation. I'm looking to go under with mine.
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe.
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12-17-2011, 02:39 PM
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#6 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,142
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Re: Best transmission crossmember for exhaust clearance.
I have the CCP trans cross member, it lays flush with the bottom frame rail very much like FriscoDave's picture. If you want to get the exhaust between the frames you will have to go over the cross member.
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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12-17-2011, 02:56 PM
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#7 |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Best transmission crossmember for exhaust clearance.
I'm looking to duplicate what Bruce88 has done, just checking to see if their's a crossmember that would give me the clearance so I won't need to add the spacer as he had to.
See picture in #320 on this link.
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe.
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12-17-2011, 06:55 PM
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#8 |
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Registered User
Join Date: Dec 2008
Location: Frisco, CA.
Posts: 68
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Re: Best transmission crossmember for exhaust clearance.
Looking at that link, the crossmember looks like ccps. He says he used a 1/4 inch shim on both sides of the crossmember. That may be the best bet.
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