If you already have a Type 1 bracket and need your belt to line up, choose the necessary aluminum spacers, bolts for changing harmonic balancers.
There are 3 different harmonic balancers available for LS motors. The shortest (farthest back toward the motor) is the Corvette/CTS-V. The medium length is the 4th Gen. Camaro/F-body LS1 or GTO LS2. It protrudes out from the motor approximately 3/4" farther than the Corvette balancer spacing. The farthest is the Truck or 5th Gen Camaro only. It is another 3/4" out from the motor, for a total of 1 1/2" past the Corvette spacing.
Includes (3) M10 x 1.5 x 110mm and (1) M10 x 1.5 x 105mm bolts
Truck to Corvette
Includes (1) new rear alternator bracket with 0.200" step milled into ear, (1) shorter 1.25" OD Idler boss, (1) shorter 1.25" OD bracket spacer, 0.3" spacer between alternator and cylinder head. (3) M10 x 1.5 x 90mm and (1) M10 x 1.5 x 85mm bolts
Camaro LS1 (4th Gen)to Truck
Includes (3) M10 x 1.5 x 130mm and (1) M10 x 1.5 x 120mm bolts, (1) additional 3/4" long, 1.25" OD Idler boss spacer, (1) additional 3/4" long, 1.25" OD bracket spacer, (1) additional 3/4" long, 3/4" OD spacer between alternator and cylinder head, (1) additional 3/4" long, 3/4" OD spacer for right side of upper bracket
Camaro LS1 (4th Gen) to Corvette
Includes (1) new rear alternator bracket with 0.200" step milled into ear, (1) shorter 1.25" OD Idler boss, (1) shorter 1.25" OD bracket spacer, 0.3" spacer between alternator and cylinder head. (3) M10 x 1.5 x 90mm and (1) M10 x 1.5 x 85mm bolts
Corvette to Camaro LS1 (4th Gen)
Includes (1) new rear alternator bracket without the step milled, (1) longer 1.25" OD Idler boss, (1) longer 1.25" OD bracket spacer, 1 1/8" long, 3/4" OD spacer between alternator and cylinder head, (1) 5/8" long, 3/4" OD spacer for right side of upper bracket (3) M10 x 1.5 x 110mm and (1) M10 x 1.5 x 105mm bolts
Corvette to Truck
Includes (1) new rear alternator bracket without the step milled, (3) M10 x 1.5 x 130mm and (1) M10 x 1.5 x 120mm bolts, (1) longer 1.25" OD Idler boss spacer, (1) longer 1.25" OD bracket spacer, (1) 3/4" long and (1) 1 1/8" long 3/4" OD spacer between alternator and cylinder head, (1) 3/4" long and (1) 5/8" long, 3/4" OD spacer for right side of upper bracket