2001-2004 Duramax LB7 Allison 1000 TransGo Shift Kit (A1000-923) Fuel Systems Groove depth

Groove depth

bolt-on stock appearing replacement with features you won’t find anywhere else

While capable of providing enough airflow to support up to 700 RWHP this stock appearing unit still lights quick and is great for daily driving

9L Gator Fasteners HD Head Stud Kit (HSK5912)

2001-2004 Duramax LB7 Allison 1000 TransGo Shift Kit (A1000-923) Fuel Systems Groove depthCorrects Prevents Reduces: Goes to neutral under load; 3 4 slip; burned C2 or C3 clutches; sticks in one gear; wont move after extended parking; loss of pump prime; smart clutch control valves for increased durability; SHORT CRISP SMOOTH upshifts and kickdowns.