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05-13-2009, 09:54 AM
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#1 |
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Registered User
Join Date: Apr 2009
Location: Carrying Place, Ontario
Posts: 48
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Auto to standard trans swap
I have the chance at complete 4speed set up out of an 86 1/2 ton 4x4. I was wondering if it would be a major job to swap out the 3speed auto and put the 4speed in my 78 Blazer?
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05-13-2009, 03:25 PM
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#2 |
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Low & Fast!
Join Date: Jan 2007
Location: Knoxville, TN
Posts: 3,110
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Re: Auto to standard trans swap
It's a lot of work, but it can be done. I bet someone will pop up on here that has done this before.
Anyone?
__________________
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05-15-2009, 08:45 AM
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#3 |
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Registered User
Join Date: Apr 2009
Location: Carrying Place, Ontario
Posts: 48
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Re: Auto to standard trans swap
Forgot to mention that the Blazer has a 305 and the truck has a 5.7 (350) if that makes any difference
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05-15-2009, 01:25 PM
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#4 |
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huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
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Re: Auto to standard trans swap
One of the biggest things to check is, see if the 86 has a 1 piece rear main seal or not. The 1 piece seal's flywheel is different than the one for a 2 piece seal like your 78 should have. The 86 should also have a hydraulic clutch setup where the 78 would have a push rod and z bar setup. The motor size difference will not affect anything...
Chuck
__________________
90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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05-23-2009, 06:40 PM
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#5 |
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Registered User
Join Date: Apr 2009
Location: Carrying Place, Ontario
Posts: 48
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Re: Auto to standard trans swap
Found out a bit more about the 4speed. It is hooked up to a 305 and the truck was an auto to begin with. I'm going out to have a look at it on Sunday and have a better look at what all will be involved in a swap. Wish me luck LOL
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