Allstar Performance Base Plate Insert 1.350" - Set of 4 600090150 NOTE: Picture shows A-1 Coil-Over

NOTE: Picture shows A-1 Coil-Over Kit (available separately)

2-5/8 in Springs

1974-1987 Pontiac Grand Prix

1963-1968 Chevrolet Chevy II

Allstar Performance Base Plate Insert 1.350" - Set of 4 600090150 NOTE: Picture shows A-1 Coil-OverTapered inserts are machined to be within . 002" for precise tuning. Inserts feature a step to simply drop into spacers and have sizes engraved on each insert for easy identification. Sold in a set of 4. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the