Skip to content

Brand: Sonnax

Type: Piston

Interchange Part Number: 103966D

Items Included: Billet Aluminum Piston, Inner and Outer Piston Seals

Manufacturer Part Number: 28761-01K

Material: Aluminum

Universal Fitment: Yes

Vintage Part: No

Part Type: Sonnax Heavy-Duty Reverse Piston

Performance Part: Yes


Heavy Duty Reverse Piston Kit
Part No. 28761-01K

Sonnax heavy duty reverse piston kit 28761-01K for GM Powerglides is configured to utilize four frictions and five steels. It can also be machined to accept additional frictions and steels for transbrake applications. To reduce rotating weight in circle track applications, two frictions (rotating) and seven steels (non-rotating) can be used.
  • High-strength piston will not break at racing pressures
  • Customizable for any application
  • Piston
  • Inner Seal
  • Outer Seal
  • Material: 6061-T6 Billet Aluminum

Use this text to share information about your product.

Blog posts