Duramax Diesels Forum Truck of the Week
Old 02-10-2019, 11:06 PM
turbovan turbovan is offline
Too many toys!!!
Join Date: Mar 2018
Location: Abbotsford, BC, Canada.
Posts: 31
Question Which core to use, 5 or 6 speed?

I have a 5 and 6 speed core to rebuild at my leisure, which one should I build? If you say the 6 speed, what should I do to the 5 speed valve body?

Max output of engine will be under 500 hp, mostly used for towing 12K.

Trying to save money, remember reading that an LML sic, TC is a good way to go?

Current truck mileage is 400K and looks like the trans is original. It hasn't limped yet and fluid is nice and red. Just trying to build one in case it dies on me.

2002 4x4 Crew cab brown/gold 2500HD. Leveled with 275/75R17 10 ply KO2's, 3" exhaust, 3.5" turbo inlet, custom 30 hp tune. Pulling an old 26ft 1998 Prowler Toy Hauler. More mods to come!
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