4L80E Questions, please inform/help!!
04-20-2006, 01:20 PM
#1
4L80E Questions, please inform/help!! Anyone? Alright, I've been doing some research and a 4L80E will be MUCH better for my 5600lb truck than building my 4L60E that I currently have. What I am wondering is, what are the difference from year to year?
1)Will a 4L80E trans out of a 92' 3500 be able to hold as much as a 4L80E out of a 2000? Stock for stock by the way. What are the differences? Shift kits are the same but clutch packs seem to be different after 96'
2)will a 4L60E converter work with a 4L80E, or do you need an 80E specific converter
3)Some people say you need to have "tune" for the trans. Why? If you have a harness to plug into factory wiring, what would need to be different in the tune (I have Tunercat software for tuning). Line pressure, shift points? I have the ability with my tunercat software to adjust for different transmission gear ratios, line pressure, shift points etc. So if I change the gear ratio's of the trans, it should work correct?
Any help would be awesome, I have a 92' 80E with low mileage sitting waiting for me to pick up, but want to make sure that the capability of that year isn't different from it's 2000 counterpart. Thanks for any info guys
1)Will a 4L80E trans out of a 92' 3500 be able to hold as much as a 4L80E out of a 2000? Stock for stock by the way. What are the differences? Shift kits are the same but clutch packs seem to be different after 96'
2)will a 4L60E converter work with a 4L80E, or do you need an 80E specific converter
3)Some people say you need to have "tune" for the trans. Why? If you have a harness to plug into factory wiring, what would need to be different in the tune (I have Tunercat software for tuning). Line pressure, shift points? I have the ability with my tunercat software to adjust for different transmission gear ratios, line pressure, shift points etc. So if I change the gear ratio's of the trans, it should work correct?
Any help would be awesome, I have a 92' 80E with low mileage sitting waiting for me to pick up, but want to make sure that the capability of that year isn't different from it's 2000 counterpart. Thanks for any info guys
Last edited by 1FSTZ71; 04-20-2006 at 02:40 PM.
04-20-2006, 04:50 PM
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Originally Posted by 1FSTZ71
Alright, I've been doing some research and a 4L80E will be MUCH better for my 5600lb truck than building my 4L60E that I currently have. What I am wondering is, what are the difference from year to year?
1)Will a 4L80E trans out of a 92' 3500 be able to hold as much as a 4L80E out of a 2000? Stock for stock by the way. What are the differences? Shift kits are the same but clutch packs seem to be different after 96'
2)will a 4L60E converter work with a 4L80E, or do you need an 80E specific converter
3)Some people say you need to have "tune" for the trans. Why? If you have a harness to plug into factory wiring, what would need to be different in the tune (I have Tunercat software for tuning). Line pressure, shift points? I have the ability with my tunercat software to adjust for different transmission gear ratios, line pressure, shift points etc. So if I change the gear ratio's of the trans, it should work correct?
Any help would be awesome, I have a 92' 80E with low mileage sitting waiting for me to pick up, but want to make sure that the capability of that year isn't different from it's 2000 counterpart. Thanks for any info guys
1)Will a 4L80E trans out of a 92' 3500 be able to hold as much as a 4L80E out of a 2000? Stock for stock by the way. What are the differences? Shift kits are the same but clutch packs seem to be different after 96'
2)will a 4L60E converter work with a 4L80E, or do you need an 80E specific converter
3)Some people say you need to have "tune" for the trans. Why? If you have a harness to plug into factory wiring, what would need to be different in the tune (I have Tunercat software for tuning). Line pressure, shift points? I have the ability with my tunercat software to adjust for different transmission gear ratios, line pressure, shift points etc. So if I change the gear ratio's of the trans, it should work correct?
Any help would be awesome, I have a 92' 80E with low mileage sitting waiting for me to pick up, but want to make sure that the capability of that year isn't different from it's 2000 counterpart. Thanks for any info guys
1) the only difference I know of are the front band in the 2000 is 1/4" wider than the older models, but the older model can be brought update with a rebuild.
2) a 60E is a different animal than an 80E, you will need an 80E converter.
3) you will have to have the computer flashed for the 80E because of the gears in the tranny, 60E has a 3.06:1 first gear, and the 80E has 2.48:1 first gear. This will cause you to throw codes.
04-20-2006, 05:25 PM
#3
Starting in 1999 the planetary gears are 10% thicker.
1997 and up has better sun gear lube passages.
1997 and up have a solid rear ring gear shaft.
1997 and up has bigger lube passages in the rear ring gear.
1999 has a wider front band.
2001 and up has stronger overrun roller clutch.
2001 has a shot peened turbine shaft with an improved lube hole.
1994 and up has a better accumulator housing set up.
1997 and up has center feed lube with clip in cooler lines.
I personally wouldn't waste time with anything below '94. Although properly built an older one should work ok.
1997 and up has better sun gear lube passages.
1997 and up have a solid rear ring gear shaft.
1997 and up has bigger lube passages in the rear ring gear.
1999 has a wider front band.
2001 and up has stronger overrun roller clutch.
2001 has a shot peened turbine shaft with an improved lube hole.
1994 and up has a better accumulator housing set up.
1997 and up has center feed lube with clip in cooler lines.
I personally wouldn't waste time with anything below '94. Although properly built an older one should work ok.
04-21-2006, 10:56 PM
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strength wise its pretty close year to year depends more on how its built, but if you ever open the door in a pre 96 4l80e truck with the cooler lines only in the front there is a sticker in the door that says do not tow in overdrive. That is because they have lube problems in overdrive when subjected to a lot of load eg. hot rodding or towing.