mr mississippi

what year model 4l80e's would work in my 2000 gmc yukon. i wanna convert from a 4l60e

Bumpers

iTrader: (10)

i think the 00- 80e would work for you but I know for sure the 02- would

mr mississippi

what would i do for a driveshaft

code4

iTrader: (30)

On my ratrod with a 4l80e I bought the correct slip yoke then found a driveshaft at the wrecking yard with 1350 u joints. Took the parts to a machine shop & had them shorten the shaft to the corrects length.

joeyc125

iTrader: (7)

any year 4l80e will work, but the 98 and newer are the strongest design, 93-95 are the weakest, 96-97 are decent. I went with an 02 that was a core with worn clutches and had it built. Its easiest to stay with your model year or similar, therefor the NSS and electrical connections are the same, there are 2 plug and 1 plug versions.

black04

iTrader: (15)

I think the 98- were missing a hole at the top of the bell housing and the 99+ got 7 holes all the way around.

joeyc125

iTrader: (7)

The top hole isn't necessary if the trans isn't drilled for it, the older sbc and bbc did just fine without it. I know plenty of people running around without the top bolt anyway because they are too dumb to realize its simple to get in/out from the top of the motor vs underneath.

black04

iTrader: (15)

Do the older sbc not have the passenger side top bolt either?

joeyc125

iTrader: (7)

Cant remember, been quite awhile since i've worked on one. But 6 bolts is plenty, the bolts only hold the trans tight to the engine, the dowel pins align, prevent twist. The trans on boss hoss bikes only have 4 bolts and the one at our shop makes 1100hp and runs 135mph in the 1/8th. Plenty to hold it together.

Onetogofast

iTrader: (9)

Which years were the one plug and which years were the two plug? What year ranges after 2000 are similar and when did they change or did they before the 6 speed AOD?