Is G56 better than 68RFE?
Many people love the transmission and say the power difference is not noticeable and if you plan to delete and tune there is no difference except you will need a clutch but the g56 with a clutch can handle more power than the 68rfe.
How much HP can a 68RFE handle?
With quality transmission control module (TCM) tuning, the stock 68RFE can support 500rwhp and 1,000 lb-ft or more, but it won’t survive boosted, four-wheel drive launches for very long—and maybe not even once if the Low/Reverse sprag explodes (which is common).
How much power can a G56 transmission hold?
From what I have read the manufacturer rates the g56 up to 600 ft lbs of torque which who knows if that’s accurate or not. From personal experience though, mine is a 2015 and its fully deleted with anarchy tunes. On the 100hp tune in 5th and 6th gear if I hammer on it the clutch slips pretty good.
Is the G56 transmission any good?
The G56 is a good trans and quiet with stock clutch, tried many fluids in mine and with stock clutch the amsoil mtg is the smoothest best fluid in my experience. Many options for aftermarket clutches which will make it louder in certain situations.
Are 68RFE transmissions good?
Overview of the 68RFE: Despite all of the impending doom the 68RFE and it’s abysmal valve body bring forth, it is a powerfully reliable transmission after being properly built. But, in stock form, it cannot hold much more than factory power.
How often should you service a 68RFE?
The manual says at 120k miles or 96 months.
How long will a G56 last?
There are circumstances where the original clutch in a G56 will last in excess 100k miles. There are also situations where the clutch starts to slip at 15k miles.
Who builds G56?
G56 History & Information Originally manufactured in Brazil by Mercedes-Benz, the Mercedes G56 transmission is a 6-speed manual transmission.
Why does the 68RFE fail?
The most common failure point of the 68RFE is the Overdrive clutches. Because of their lack of mass, the 68RFE clutches have a very low tolerance to heat and do not dissipate it well. Once these clutches heat up past a certain temperature, they begin to distort.