PEM Xtreme Fullsize Spool - 31 Spline - Black - Ford 9 in Differentials & Rear-End Components Relief hole in cover uses

Relief hole in cover uses screw in plug instead of pressed cup plug

2-Piece Design Features short Individual Runners & a Large Upper Plenum

*Filters are backed by a 1 year warranty

Tunnel Crossover

Tie Down Hanger

PEM Xtreme Fullsize Spool - 31 Spline - Black - Ford 9 in Differentials & Rear-End Components Relief hole in cover usesProduct Description: Spool Xtreme Fullsize 31 Spline Steel Black Powder Coat Ford 9 in PEM has 20+ years experience in the manufacturing business. We are based in the midwest about 1 hour Southwest of St. Louis, MO on I 44. Our goal is to serve you with quality rear end and drive shaft products with competitive pricing. Show more