Remanufactured Valve Body
Gm003

3T40 (125C)
Remanufactured Valve Body GM003

With 3-Prong 2nd Switch

Gm004

3T40 (125C)
Remanufactured Valve Body GM004

without 3-Prong 2nd Switch

Sonnax rebuilt valve body GM004 is no longer in production. Please check with your distributor for availability. For service inquiries, please see details on Sonnax’s Limited Lifetime Warranty on remanufactured valve bodies.

Internal
Sbk g13

Bearing Kit SBK-G13

1985 & later

75410 10

Differential Carrier-to-Case Shim 75410-10

  • Material: Steel
  • Thickness: 0.010"
  • Inner Dia.: 1.445"
  • Outer Dia.: 2.170"
    Helps cure:
  • Driveline noise
  • Excess backlash
  • Reduced differential bearing life
35400c

Driven Sprocket to Case Thrust Bearing 35400C

  • Bearing Style: Enclosed
  • Inner Dia.: 2.134"
  • Outer Dia.: 2.890"
  • Width: 0.140"
Pump
75877a

Pump Shaft with Bearing 75877A

1984 & later

1280

Pump Vane 1280

Case
75921 01k

Accumulator Piston Kit 75921-01K

    Helps cure:
  • Burnt Forward clutch
  • Poor shift quality
  • Wrong gear starts
  • Delayed engagement
75921 03k

Oversized Accumulator Pin & Reamer Kit 75921-03K

    Helps cure:
  • Burnt Forward clutch
  • Poor shift quality
  • Wrong gear starts
  • Delayed engagement