I have a 91 Silverado 2500, and in the rpos it has the code
MT1: Transmission - 4 Speed Auto W/Elect Controls H.D. (Hydra - Matic 4L80 - E).
I also have a 99 Silverado 1500 that I will be putting this engine in, some time in the very near future. Does anyone know if the older tranny will work in the newer truck with the wiring conversion?
<div class='quotetop'>QUOTE(brent1976 @ Jan 15 2007, 03:45 PM) [snapback]79901[/snapback]</div>AHH THE LQ9 MOTOR. IT SHOULD BOLT UP, BUT YOU MAY NEED TO GO VACUUM MODULE SHIFT NOT COMP. CONTROLLED? IT MAY WORK I DO NOT KNOW. ASK RED HE WILL KNOW.I have a 91 Silverado 2500, and in the rpos it has the code
MT1: Transmission - 4 Speed Auto W/Elect Controls H.D. (Hydra - Matic 4L80 - E).
I also have a 99 Silverado 1500 that I will be putting this engine in, some time in the very near future. Does anyone know if the older tranny will work in the newer truck with the wiring conversion?
[/b]
JAMEST
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La Viuda negra/ a.k.a. Black Betty
LQ4 6.0L, WCCH HEADS, LEVEL 5 FLT 4L80E TRANS. WITH TRANS BREAK, YANK 3200 STALL, TRICK TURBO, TURBONETICS T-76 TURBO, CUSTOM INTERCOOLED, 68lb INJECTORS, CUSTOM S/D TUNE FROM NELSON PERFORMANCE, COMP CAM 212/214 .557/.559 116+2, SNOW METH. KIT, . ALL INSTALLED AND DYNOED AT NELSON PERFORMANCE: 5**?HP @ 5073rpms and 5**TQ @ 4389rpms AT THE WHEELS WITH 10 PSI OF BOOST. ALL 3/4 TON TRUCK 5435LBS, NOTHING TAKEN OFF, STREET TIRES, AND USUALLY 2 BABY SEATS. WANNA RIDE?
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I don't mean to sound like the new guy, but by red do you mean RedHeartbeat.
If it's this Red, I'm not too sure. I think it will work just fine with the electrical adapter and crankshaft extension with bolts and proper flex plate(maybe off the old engine that the transmission came from). I did not know that they made the 4L80E all the way back then.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
The old truck has a 5.7l with tbi.
It is kind of a strange running truck. Just driving it, it doesn't seem to have much power, but when you are pulling a trailer, or a heavy load in the bed, it doesn't feel like you could stop it.
Anyway, that would have the same flywheel as the 4.8/5.3 if I am guessing correctly.
Nope, the previous style engines had a flat flywheel. The new ones are dished.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Well, I have no idea then. Everyone tells me I should just sell the old truck and use the $2-3k I get from that to help with the cost of rebuilding mine. I just started studying up on the transmissions, and can't figure out why everyone buys level 5 60es that can handle 5-600hp, when a 80e stock can take 700hp for less money.
A properly built 4L60e is behind a 1000+ HP Fbody in the NE and ran an entire season without a single tear down. I don't know what it's curb weight is but that's got to account for something.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Yes it'll work, harness did not change.
80E came out around '90 or '91...
The superior man is modest in his speech, but exceeds in his actions. - Confucius
"He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel
'01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
'80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL
Let's face it, the red hair... makes 'em wet.
Thank you X. The cooler lines, and every thing else are the same also.
That's fine that one can handle 1000hp, but I don't want to have to worry about maby having to tear it down in a year. I have a truck that I want to be able to take on vacation, or go on a 3 hour drive, or go fishing at a remote location, without having to worry that my transmission may or may not be ready to blow at any second.
I don't mean to sound like I'm arguing, but I need the piece of mind with my dd that needs to be able to be completly dependable.
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