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03-13-2008, 07:33 PM
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#1
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Join Date: Oct 2005
Location: Old Bridge Twp., NJ
Posts: 235
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Rebuild or Drop in?
Do you guys think it'll be cheaper to rebuild a 4L60E to hold some big power or just buy another built trans (brand new) and drop it in?...
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'00 Z/28 - *SOLD* 383 Stroker, H/C, Full Boltons
'06 GSX1300R - Full Yoshi TRS Exhaust, PC3, TRE, 17/42 Setup, Sm Airbox Mod, R6 Throttle
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03-13-2008, 09:40 PM
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#2
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NJFBOA Supporting Sponsor
Join Date: Feb 2006
Location: HULMEVILLE, PA
Posts: 2,023
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Cheaper now, or cheaper when you have to pull it out again and ship it back after it blows up?
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03-14-2008, 12:06 PM
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#3
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Join Date: Aug 2004
Location: Hillsborough, NJ
Posts: 2,630
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4L60's are tough from what I've been told. There are certain critical high stress parts that they don't make a stronger aftermarket version of so either way it's tough to build them up to handle lots of power. I have no personal experience pulling one apart but that's what I was told my 2 different trans builders when I blew the 4L60 in my pickup. That being said you may want to just look into a stock GM replacement with a warranty or have yours rebuild with upgraded clutches and so forth but know that there are still weak points that can't be addressed at this time.
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03-24-2008, 03:46 PM
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#4
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Join Date: Oct 2005
Location: Old Bridge Twp., NJ
Posts: 235
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Ok, well does anyone know of the easiest replacement trans I can bolt up to an LS1 and that can handle a ton of power? I know some tranny's are a PITA to install...
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'00 Z/28 - *SOLD* 383 Stroker, H/C, Full Boltons
'06 GSX1300R - Full Yoshi TRS Exhaust, PC3, TRE, 17/42 Setup, Sm Airbox Mod, R6 Throttle
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03-24-2008, 05:31 PM
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#5
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12 Second Club
Join Date: Aug 2004
Posts: 2,923
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Quote:
Originally Posted by HardcoreZ28
4L60's are tough from what I've been told. There are certain critical high stress parts that they don't make a stronger aftermarket version of so either way it's tough to build them up to handle lots of power. I have no personal experience pulling one apart but that's what I was told my 2 different trans builders when I blew the 4L60 in my pickup. That being said you may want to just look into a stock GM replacement with a warranty or have yours rebuild with upgraded clutches and so forth but know that there are still weak points that can't be addressed at this time.
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actually, these trans need a lot to get them to hold up compared to what other trans take. Look up on ls1tech, lots of people do a 4L80E conversion.
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03-25-2008, 04:19 PM
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#6
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Join Date: Oct 2005
Location: Old Bridge Twp., NJ
Posts: 235
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4L80E = 4L60E w/ different internals?
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'00 Z/28 - *SOLD* 383 Stroker, H/C, Full Boltons
'06 GSX1300R - Full Yoshi TRS Exhaust, PC3, TRE, 17/42 Setup, Sm Airbox Mod, R6 Throttle
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03-25-2008, 05:45 PM
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#7
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Mike Something
4L80E = 4L60E w/ different internals?
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No.
4L65-E is a version of the 4L60-E with better internals.
4L60-E is an electronic derivative of the old TH350.
4L80-E is an electronic derivative of the old TH400. Stronger but heavier.
First gear in a 4L60-E is 3.06. First gear in a 4L80-E is 2.48.
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03-25-2008, 08:49 PM
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#8
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Join Date: Aug 2005
Location: Millville & Little ferry New Jersey
Posts: 454
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4L60E is just an electronic version of the 700R4 they both share most of the same internal parts..
Plan on spending around $2000 for a 4L60E rebuild that is what mine cost but it came with a gaurantee for aslong as I own the car..
I weighed the pro's and con's of doing the 4l80e swap but you will have to get a new Torque converter along with a few other things..
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2002 Z/28 = Firemutt Racing 370 w/ Cam, Trick Flow heads, TPIS 90mm Intake & 90mm T.B., Vigilante 3600 t.c., Michael's Transmissions Built 4L60E.
QTP Headers, Mufflex Stainless Y-pipe, Pypes Performance Exhaust, Moser 12-bolt w/ 33 spline axles,Truetrac & 3:73's., Spohn.
Cartek Tuned...
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03-29-2008, 12:47 PM
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#9
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Join Date: Oct 2005
Location: Old Bridge Twp., NJ
Posts: 235
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$2000.00 for a rebuild? How many horses is rated for? And where did you get it done at?
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'00 Z/28 - *SOLD* 383 Stroker, H/C, Full Boltons
'06 GSX1300R - Full Yoshi TRS Exhaust, PC3, TRE, 17/42 Setup, Sm Airbox Mod, R6 Throttle
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