76612a 01

4R70W, 4R75W

Forward Sun Gear 76612A-01

31-Tooth, for use with 2.84/1.55 ratio gear sets.

76656 01k

4R70E, 4R70W, 4R75E, 4R75W, AODE

Smart-Tech® Direct Clutch Drum & Shaft Kit 76656-01K

Must be used with 4R70W and 4R75W 2.84/1.55 gear sets with 31-tooth forward sun gear.

22121b 08k

47RE, 47RH, 48RE

Smart-Tech® Big Input Shaft Kit 22121B-08K

Use of this kit requires installation of matching Sonnax performance converter kit BW-RK-4 or BW-RK-5.

99572 01


Heavy Duty K2 Clutch Hub 99572-01

Fits Dodge units only.

    Helps cure:
  • K2 Clutch burned
  • Damaged K2 hub splines
  • No 4th
  • No 5th
  • No 6th
  • Slips & flares
  • Ratio codes
38512 01k


Shift Lever Kit 38512-01K

74140 01k

4L60, 4L60-E, 4L65-E, 4L70-E

Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K

Requires ‘91-later 3-4 apply ring stamped with number “7”, measuring 3.671–3.682" in height.

28924 32l web


Extreme Strength Output Shaft 28924-32L

  • Shaft Length Option: Long
  • Material: Heat-Treated 300M Steel
  • Spline Tooth Count: 32