There are 9 choices

Choose One

Automatic Transmission
- 4x2
  - TH350
  - TH400
    - diesel
    - gasoline
- 4x4 (TH350)
Manual Transmission
- 3 speed
  - 4x2
    - side cover (Saginaw manufactured)
    - top cover (Tremec manufactured)
  - 4x4
- 4 speed
  - 4x2
  - 4x4

Transmission Assembly for 1978 GMC K15

Attention!

There are 9 choices for the 1978 GMC K15 Transmission Assembly !!!
Choose Your Option

Automatic Transmission 4x2 TH350
Automatic Transmission 4x2 TH400 diesel
Automatic Transmission 4x2 TH400 gasoline
Automatic Transmission 4x4 (TH350)
Manual Transmission 3 speed 4x2 side cover (Saginaw manufactured)
Manual Transmission 3 speed 4x2 top cover (Tremec manufactured)
Manual Transmission 3 speed 4x4
Manual Transmission 4 speed 4x2
Manual Transmission 4 speed 4x4

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