01 Silverado LS1 / T56 conversion

[6gear]

Console

[6gear]

Console

[6gear]

Cluster

[litllered 4.8]

Damn that console looks great, and it looks like something factory only better.

[retsell]

I am working on this swap as well, but from a 4l60e in an o2 gmc.

I heard the driveshaft will work with going from the 4l60 to the M6, so I am not worried about that.

Did you use your stock clutch master cylinder? Did it work out ok with using the t56 slave cylinder? No release problems or pedal sticking to the floor??

Did you use your stock hydralic line between the master and slave cylinder?

[6gear]

I used all stock items except I used a SPEC II clutch. The slave in the T56 was the same as the one in my 5 speed. Everything works fine

[litllered 4.8]

Ron is it true you can stick a t56 behind the 4.8. If so what else besides the driveshaft would have to be change out?

[retsell]

Originally posted by litllered 4.8@Sep 23 2004, 05:02 PM
Ron is it true you can stick a t56 behind the 4.8. If so what else besides the driveshaft would have to be change out?

if you go from auto to t-56 you do not need a new crossmember,

you need

clutch
flywheel
tranny
bellhousing
master cyl
slave cyl
pilot bearing
hydro line
pedal assym.
flywheel bolts
pressure plate bolts
clutch pedal bolts
shifter
shifter handle
reprogram ecu
modify crossmember

I dont think im forgetting anything

remember, the ls1 block and 4.8, 5.3, 6.0 block are all almost identical on the outside. A couple of accessory bolt holes are missing between the two, but thats it. 99.99999 percent of all parts are interchangeable, including trannys.

[litllered 4.8]

Got the 5spd does that take off some of those needed things?? That's a hell of a nice list to thanks!!

[6gear]

If you already have a 5 speed it make it pretty easy, about the only thing you would need would be a shorter driveshaft, most T56's come with bellhousings and if they are out of a Camaro or T/A they will bolt up fine. The T56 and your 5 speed use the exact same slave cylinder so you can use your truck slave which has the hydraulic line attached or you can use the T56 slave and drive the roll pin out and swap in the truck hydraulic line. And also you will need a set of 4.56 gears.