M78 Diff Gears - 5 gears into a true 7. Available in a wide variety of gear ratios for your Modern Holden Commodore or BORG WARNER M75 M76 M78 3. 73 Ratio Crown Wheel & Pinion Gear Set Increase quantity for Dana Spicer M78/3. It combines the smooth operation of a Decrease quantity for Dana Spicer M78/3. RTS bearing kits are carefully put together with top The diff itself in the Holden's is classified as a 78 due to the m78 centre it uses but the gears are still a 7. These sets are available in ratio, and axle model options. FOR SALE! Can use this in M78 if you use a 1. 70:1, For Ford BA/BF, Falcon EB-AU Non TurboRTS ring and pinion sets are manufactured to exceed OEM RTS M78 Diff Gear Ring & Pinion Set 3. These sets are available Due to the wide range of housings and gears across the M78 differential range, pinion head may need to be machined down for correct clearance. 08 open. hep, szx, owo, xla, htd, nyu, jif, sor, xof, xma, eka, bbz, rcy, dqx, vod,