t_thall

iTrader: (4)

i am gonna swap my 4l60e for a 4l80e soon. do i need a different length drive shaft or do i just need to change the yolk?

Low_LSX

iTrader: (33)

Just change the Yolk and modify the crossmember to make it fit.

thunder550

iTrader: (70)

4wd requires a shorter rear and a longer front driveshaft.

howard quick

I didn't have my front shaft altered...it fitted fine.
The rear shaft I had shortened 42mm.

nonnieselman

iTrader: (10)

in my 2wd i used a TH400 Long Yoke ($15 i think) cut 5/8" off. Got new u Joints and slapped it in...
OAL of the 80 is about 1/2" over the 60i think?

MOTTRHED

iTrader: (11)

does the 4l60 transfer case work or do you need the 80 one?

nonnieselman

iTrader: (10)

I believe there is a thread on that..
I cant remember where i saw it, If i find it ill PM ya.

thunder550

iTrader: (70)

The transfer case works, but you either have to have the 80E fitted with an output shaft that matches the spline count of the 60E, or you have to change the input gear on the transfer case to match the output shaft of the 80E. I would recommend the latter so you can keep the beefy 80E output shaft.

MOTTRHED

iTrader: (11)

Im just going to keep asking dumb questions, where would I be able to order this input gear? Did you guys have you driveshafts modified or buy new ones? Either way where?

howard quick

Yeah....I bought a used 80E complete with manual (241) transfer case. I wanted to use my push button (243) transfer case so I swapped the input shafts over.



Right now I'm uploading to Photobucket....every pic I took of my transfer case rebuild. I'll post the link as soon as it's done and you can have a look if you need any help.