mud

i have a 05 short bed auto and im thinking about trading it in for a 06 six speed long bed . i have the afe stage 2 intake in my 05 will it fit an 06 and any pros/cons to the six speed over an auto

TexasCTD

The new 6 speeds are great for pulling stumps!! But unloaded interstate cruising is not their forte, given the rpms they turn. They will turn about 3-400 rpms higher than an auto tranny with 3:73 gears.

Don't take what im saying as a knock against the G56 6 speed, just understand the differences and how they will apply to your usage.

Nav

The G-56 pulls like a dream, but be prepared for lower mileage figures. If you get it with the 4.10, you might as not even compute mileage. It wont really matter

Nav

ramtd02

The G56 only comes with 3.73's, so you wont have too worry there, and i am averaging 18.13 USmpg hand calc through 7000 miles on the clock. That is 50% highway(60-80mph), 30% towing (12,500@60-80), and 20% city driving.

texaspower19

in my 06 3500 i love the 6 speed it will pull any thing i want ,wen my wife drives she can get 19-20 mpg, but i have 32k already on it also. milage suked at first, and it will only run abot 108mph

Nav

RamTD02, my bad, you're right. The G56 only comes with 3.73's

With my 4x4 QC Dually (10k on engine) I'm averaging the (hand calc'ed) following:

city/rural (45 mph) - 16.8 mpg
Highway (70) - 15.3mph
Pulling (10k lbs - 75mph - 2600rpm - flat land) - 8.5 mpg
Pulling (10k lbs - 70mph - 2300rpm - flat land) - 9.7 mpg
Pulling (10k lbs - 62mph - 2000rpm - flat land) - 11.8 mpg
Overhead is dead on when pulling, off 2 mpg unladen.

Nav