Before I buy a 6.0 and trans to drop in where my stock 5.3 and transmission were I want to make sure that it bolts right in. No motor-mount, crossmember or other modifications necessary? Everything just bolts in smooth as a baby's butt and no problems? Even I can do it?

Thanks, Jim

 

Everything is same except for the tranny crossmember.

 

Will it need harness changes? I have a Nelson tune so Allen would take care of any changes necessary there.

The trans crossmember would have to be cut out and welded back in? Is the trans longer? Drive shaft alterations necessary?

 

Tranny crossmember, wiring harness and driveshaft as far as I know. Speed engineering has a conversion kit on their website at....
http://speed-eng.com/store/index.php?cPath=23_940_1409

 

Great link! Thanks for that. Jim

 

Speartech will have to flash the PCM for it to control the 80 also. I think Speed Eng might perform the task also.