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05-13-2016, 09:09 PM
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#1 |
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Registered User
 
Join Date: Jan 2012
Location: greenville pa 16125
Posts: 283
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th 400 to 4l80e
I am wanting to swap out my th400 for a 4L80e in my 1982 c 20 . The truck has 4.10 gears , lookin for overdrive ! What is involved in this swap ?
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05-14-2016, 01:10 AM
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#2 |
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Registered User
Join Date: Dec 2011
Location: Regina, SK, Canada
Posts: 622
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Re: th 400 to 4l80e
http://67-72chevytrucks.com/vboard/s...d.php?t=537481
I did the swap s while back and posted the build, actually went very well and was not too difficult at all.
__________________
1979 Chevy Dually Crew 4X4 454, D60 Tru-trac, D70 Detroit Locker, 3.73, 4L80E/NP205 1971 GMC 3/4 Ton 4X4 |
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05-14-2016, 09:31 AM
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#3 |
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Registered User
Join Date: Jan 2012
Location: greenville pa 16125
Posts: 283
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Re: th 400 to 4l80e
It looks like a 700r would be a lot cheaper to swap in .
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05-15-2016, 05:52 AM
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#4 |
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Registered User
Join Date: Aug 2009
Location: Sunray,TX
Posts: 251
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Re: th 400 to 4l80e
if you ever plan an LS/8.1/dmax swap, that would be the best time to upgrade to an 80e. I did the 8.1/80e in place of my tbi454/400 all at once since it saved me from needing to buy a tranny controller. if you pull/ haul much, the 700 isn't your best option
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05-15-2016, 07:04 AM
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#5 |
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Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: th 400 to 4l80e
The 700r4 would be cheaper and easier to get parts for.Hit the junkyard look for c10/c20 81-87,Get the trans the driveshaft the crossmember the kick down the shifter linkage and maybe the steering column.I would drop the used trans off at a shop to get rebuilt which isn't that bad price if you drop it off and pick it back up.
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05-16-2016, 11:02 AM
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#6 |
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Master Hater
Join Date: Apr 2006
Location: Temple,Tx.
Posts: 402
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Re: th 400 to 4l80e
Once you own a truck with a 4l80E you will never want another junky ass 700r4 or 4L60E
I love a TH400 , and a 4L80E
__________________
1997 C1500 ECSB 4.3/NV3500 8.5 3.42 "This evening, all of you bleeding hearts... why don't just go ahead and hug yourself for the next 20 minutes or so, because there's a really good chance you're gonna be offended".- Captain Owen Honors |
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