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10-29-2013, 04:29 PM
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#1 |
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Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
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What auto trans for a 8.1 vortec swap
Hey guys I'm going with an 8.1 vortec in my 72 4x4. I want to keep it auto. Would I need to look for a 4l80e from a 4wd truck or will the 2wd version work?
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10-29-2013, 07:25 PM
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#2 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
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Re: What auto trans for a 8.1 vortec swap
2wd will work if you want a 2wd drive only you'll need 4wd one
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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10-29-2013, 07:51 PM
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#3 |
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Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
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Re: What auto trans for a 8.1 vortec swap
is there any way to make a 2wd trans work in my 4wd. my truck is 4wd right now
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10-29-2013, 08:06 PM
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#4 |
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Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: What auto trans for a 8.1 vortec swap
Is there a was? Yes, with the right output shaft and extension/adapter.
What transfer case do you plan to use?
__________________
My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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10-30-2013, 03:41 AM
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#5 |
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Registered User
Join Date: Oct 2003
Location: Sunny, Florida, some might call it South Alabama
Posts: 834
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Re: What auto trans for a 8.1 vortec swap
Yeah you can make it work. But you have to change a few things. You should be able to google it.
__________________
Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart. |
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10-30-2013, 05:43 AM
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#6 |
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Registered User
 
Join Date: Jul 2010
Location: memphis
Posts: 2,537
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Re: What auto trans for a 8.1 vortec swap
what trans is in it now?...you could jus have that one rebuilt..unless you jus wanna go with OD trans..
__________________
1981 C-10 (Pop's) 1978 Camaro 2006 Lacrosse |
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10-30-2013, 09:29 AM
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#7 |
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Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
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Re: What auto trans for a 8.1 vortec swap
not sure what transfer case im going to use and right now i have a th400 but i do want to switch to the overdrive
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10-30-2013, 03:02 PM
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#8 |
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Registered User
Join Date: Nov 2012
Location: West Des Moines, Iowa
Posts: 450
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Re: What auto trans for a 8.1 vortec swap
If you don't know the difference between a 2wd and 4wd trans you probably shouldn't be attempting this swap on your own.
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10-30-2013, 07:41 PM
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#9 |
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Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
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Re: What auto trans for a 8.1 vortec swap
jon i never said i dont know the difference im trying to find out if i can make a 2wd trans work cause thats what i could get a hold of right now. and thats what forums like this are for bud to learn
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10-30-2013, 08:13 PM
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#10 |
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Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: What auto trans for a 8.1 vortec swap
I didn't mention, the output shaft replacement requires extensive tear down of the transmission.
__________________
My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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10-30-2013, 08:35 PM
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#11 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: What auto trans for a 8.1 vortec swap
I'll skip all the technical stuff.
Is it possible, yes. Is it practical, worth it, normal, or something that anyone here would have an interest in doing...no. www.car-part.com if you can't find a 4wd trans there, then your lying to me. 
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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10-30-2013, 11:22 PM
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#12 |
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Registered User
Join Date: Jul 2007
Location: san jose ca
Posts: 172
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Re: What auto trans for a 8.1 vortec swap
so im going to see if he'll sell the engine only and look for a 4wd 4l80e. thanks guys
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10-30-2013, 11:29 PM
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#13 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: What auto trans for a 8.1 vortec swap
I think they have a 4WD option......you could keep your turbo400 and put a Gear Vendors overdrive behind it.
__________________
Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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10-31-2013, 12:37 AM
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#14 | |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: What auto trans for a 8.1 vortec swap
Quote:
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING |
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10-31-2013, 12:06 PM
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#15 | |
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Registered User
 Join Date: Jul 2012
Location: paragould,arkansas
Posts: 858
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Re: What auto trans for a 8.1 vortec swap
Quote:
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10-31-2013, 12:29 PM
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#16 |
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Newbee
Join Date: Jan 2010
Location: Phoenix, Arizona
Posts: 1,406
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Re: What auto trans for a 8.1 vortec swap
Or you could get a divorced NP205, and a 2wd trans will work fine. Just another option.
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