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03-18-2010, 10:09 AM
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#1 |
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Senior Member
 
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,862
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700r4 tranny install question
I just installed a 700r4 in the 67 longbed and Im using my stock auto tranny crossmember.
Heres the question. For you guys running this tranny, did you hve to drill new mounting holes in the frame to bolt down the crossmember or am I doing something wrong here? I thought the turbo 350 long tailshaft (which is what I was running) and the 700r4 basically used the same trans housing
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1967custom |
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03-18-2010, 10:40 AM
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#2 |
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Registered User
Join Date: Nov 2008
Location: Italy
Posts: 1,278
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Re: 700r4 tranny install question
I swapped from a 396 w/400 tranny to a 383 w/700r4. I bolted it up without making any holes in the frame.
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'68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb 
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03-18-2010, 10:55 AM
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#3 |
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Senior Member
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,862
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Re: 700r4 tranny install question
im running a 350 hei, mount towers mounted in the front holes. the turbo 350 tranny put the crossmember in the usual location but now that I bolted up the 700r4 it seems to have scootched it back
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1967custom |
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03-18-2010, 11:28 AM
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#4 |
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425hp409
Join Date: Oct 2008
Location: Prosper Texas
Posts: 841
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Re: 700r4 tranny install question
The 700R4 trans mount is further to the rear than the 350, so just scoot the crossmember back and drill new holes in the frame.
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Charles 68 SWB, Dad bought new, now 396 & factory ac 64 Impala SS, 409 425HP, 4 speed AC 64 Bel Air Wagon, 400 Small Block 57 Bel Air all original 283 w/Factory Air 77 GMC Sprint, 454/425HP 67 Olds 442, all original 90 ZR1 Corvette |
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03-18-2010, 12:16 PM
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#5 |
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Registered User
Join Date: Mar 2010
Location: San Antonio, TX
Posts: 265
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Re: 700r4 tranny install question
^
thats what i had to do.
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View pics of my truck - 1968 Chevy C10 SWB - Photobucket I'm not wasting money on my truck, I'm helping to rescue the economy one mod at a time.
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03-18-2010, 12:28 PM
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#6 |
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Registered User
Join Date: Aug 2007
Location: Midlothian VA
Posts: 37
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Re: 700r4 tranny install question
From what I understand, the 700r4 is 3" longer than the TH350. I installed one in my El Camino which originally had a TH350 and I had to move cross member back and shorten the drive shaft by 3".
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1972 Cheyenne C10 LWB 1970 C10 292 I6 3 speed 2017 Silverado LS 4x4 1978 El Camino SS, LT1 swap 2016 Camaro SS |
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03-18-2010, 02:33 PM
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#7 | |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: 700r4 tranny install question
Quote:
But, like said above regardless of the length, the 700 mount is further rearward and does require new holes drilled.
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I'm on the Instagram- @Gearhead_Kevin |
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03-18-2010, 04:50 PM
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#8 |
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Senior Member
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,862
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Re: 700r4 tranny install question
thats what I needed to know Guys. thank you. I gues Ill have to drill more holes in the frame
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1967custom |
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