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04-16-2015, 04:57 PM
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#1 |
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Registered User
Join Date: Mar 2014
Location: Corvallis, OR
Posts: 715
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TH350 to 700r4 swap
Well, because I can't just leave my stuff alone and the engine feels pretty gutless from a stop I'm already planning on swapping in a 700r4 and changing out the front/rear diff.
I know its about 3" longer, so what have you guys done? Engine forward, or transfer case back? How did that work out?
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1972 GMC Jimmy Custom 4.8L (L20)/6L90E/NP205 1989 Chevy Suburban V2500 350/Turbo 400/4.11 gears 1996 Chevy Suburban K1500 350/4L60E |
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04-16-2015, 06:37 PM
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#2 | |
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Senior Member
 
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,764
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Re: TH350 to 700r4 swap
Quote:
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Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
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04-17-2015, 08:46 PM
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#3 |
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Registered User
Join Date: Mar 2011
Location: Havertown Pa
Posts: 392
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Re: TH350 to 700r4 swap
I'm with Jim, I moved the engine 2" forward then used the Advanced Adapter 1 3/4" spacer to mate the 205. I relocated the transfer case support 1 3/4" back. I have a 2 1/2" lift and a 14 bolt rear and had to set the pinion angle so I moved the rear back 1" to center the wheel in the wheel well. I can still run the stock drive shafts but I set the pinion for a CV shaft from Tom Woods.
    
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72 CST 4x4 Blazer, 1 ton 70 SS Chevelle, L78, 396 Everytime someone calls your Blazer a Bronco, God kills a kitten. |
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04-17-2015, 09:18 PM
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#4 |
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Registered User
Join Date: Mar 2015
Location: Seaside,CA
Posts: 142
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Re: TH350 to 700r4 swap
Everytime someone calls your Blazer a Bronco, God kills a kitten.
HAAAAAAAAA! I really did laugh out loud when I read that. How many times have you looked at someone who just called your truck a Bronco and had to count to 10. |
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04-22-2015, 12:17 PM
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#5 | |
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Registered User
Join Date: Nov 2009
Location: Palm Beach Florida
Posts: 80
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Re: TH350 to 700r4 swap
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04-22-2015, 10:00 PM
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#6 |
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Registered User
Join Date: Mar 2011
Location: Havertown Pa
Posts: 392
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Re: TH350 to 700r4 swap
yes, 700r4, the trans I had was already rebuilt and I didn't want to send it out to change the shaft so I took the cheaper option.
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72 CST 4x4 Blazer, 1 ton 70 SS Chevelle, L78, 396 Everytime someone calls your Blazer a Bronco, God kills a kitten. |
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04-23-2015, 11:27 AM
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#7 |
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Registered User
Join Date: Mar 2014
Location: Corvallis, OR
Posts: 715
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Re: TH350 to 700r4 swap
That was going to be my next question! I have a broken 4L60E on my garage floor right now and the only difference I can spot in dimensions is the output shaft.
So I can pickup a shaft for a 700R4, put that in and will directly bolt in place of a TH350, or it still slightly longer? Either way, the engine will be going forward. Sure would be nice to actually be able get to the distributor.
__________________
1972 GMC Jimmy Custom 4.8L (L20)/6L90E/NP205 1989 Chevy Suburban V2500 350/Turbo 400/4.11 gears 1996 Chevy Suburban K1500 350/4L60E |
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