Transmission Specialties Powerglide SFI One-Piece Aluminum Transmission Cases 2505

Transmission Specialties’ Powerglide SFI one-piece aluminum transmission cases are SFI certified for Powerglide transmissions. They were developed to eliminate all weak points found in the original GM transmission case. Cast from 356-T6 aluminum and precision machined to rigorous specifications, these cases are SFI-approved for competition use. The case also features steel safety inner liner, thus, eliminating the need for any external shields.