G56 Transmission Gear Ratios. USA Standard Manual Transmission G56 2nd Clutch Gear ZMG5628A Usa Standard Gear '05 was the split year on the trannys, nv5600 for early 05, G56 for late. That gives the final gear ratio which you can easily compare
G56 Transmission for Sale Dyno Tested from www.g56transmission.com
That gives the final gear ratio which you can easily compare Gear Ratio; Fluid; Ebay Store; Other Transmissions
G56 Transmission for Sale Dyno Tested
Imagine your G56 transmission as a musical instrument where each gear is like a different note NOTE: A great bulk of the transmissions you are used to have 4th gear as direct drive 1-1 ratio with no power flowing through the cluster gear The ratio's of the G56 are: 1st gear 4.01, 2nd 2.32, 3rd 1.40, 4th 1.00, 5th 0.72 and reverse 3.55
G56 Countershaft Drive Gear 6th 6.7 Dodge Diesel 6 Speed Transmission C&M Gearworks. Case: Aluminum Torque capacity: under 700 lb-ft (depending on MY) Weight: 200 - 225 lbs Fluid capacity: 4.95 qts Fluid type: ATF+4 or 75W/90W gear oil Just as a skilled musician varies notes to create harmonious tunes, the transmission adjusts gears to optimize power and speed
USA Standard Manual Transmission G56 5th & 6th Gear Countershaft 6.7L ZMG569A Yukon Gear & Axle. To verify, look at the last two letters on the transmission bar code label. Really both transmissions are pretty good, as long as it still shifts great in the truck you're looking at you should be fine