well me and dieseldocter16 under went the g56 swap in my 04 cummins. heres the do's and donts of the swap. i got a g56 with tcase from rondo enterprises and the clutch from tony at mighty diesel. started off with all the auto trans parts removed ie the cables lines harness and little other stuff out, installed the new clutch and flywheel, and hydro's. then after much fighting with junk jacks we installed the trans you must cut the hole in the floor to the size of the larger stamping that is visable via the underside with the insulation. we then installed the trans and then the tcase and cross member then the drive shafts , i have a quadcab long bed the rear drive shaft will work with no mods but could be 1 inch shorter so im gona have it cut down the front shaft will work but should be 1 inch longer to keep them at stock lengths. the crossmember will work with no mods. the steering column will work just remove the shifter and wiring key will go in and out no problem and steering will not lock. the auto cup holder must go. now for the pedals the bracket is the same auto and manual the hole and area for the clutch pedal is there, just install the pedal and pins and cut the brake pedal to size and your done. hook up the hydro's to the pedal and trans. im waiting for my tuner to come back to reflash the truck into thinking its stick but till then im wiring up a push to start switch. the abs is not affected at all by the swap, so heres my parts list

trans
tcase or the input gear
clutch and hydro's {dont forget the retainer for the clutch master cylinder}
clutch pedal
shifter
cuphold/ console
starter button or programer to reflash truck

ill be posting pics soon hope this helps

 

looking forward to seeing some pics

 

The G56 is sexy. Cant wait to see how it rips.

 

I would like to see some pics.Why did you swap?Could you not find a auto to hold up/Just curious i have a auto.Damn 5-7 thousands alot of money for a billet tranny.I am almost at the point you are at.

 

thats good redsled

 

pics are coming....... the swap ran me 4800 bucks i did the swap because i miss shifting and auto wasnt cuttin it

 

cool!

 

The truck also sounds 10 times better now that it's stick.

 

i am doing this swap on my truck and i found the g56 tranny,tcase,clutch,flywheel,hydros, pedals, tranny plate, and driveshafts out of an 06 dodge. Do you think these will bolt up to my 04 truck without any problems?

 

i figured everyone would be going with a nv4500 nv 5600 beings the alloy case on the g56 is the weak link when i changed my cluutch 50 k i noticed my imput shaft has all kinds of slop in it did some talking with south bend and blumenthaw transmission and both said its been a pretty common thing on the g56 and the 4th gear probs i have heard of a few and a guy i know blew 4th out of his $1800 just to fix what needed to be to get him by but i did get word of a cast housing is in the making for the g56 then it will be a tank i think im listening ears here though