Ball Seal Kit w/Grease Zerks

The Ball Seal Kit with Grease Zerks from BERT TRANSMISSIONS is a critical maintenance component for builders and enthusiasts running high-performance transmissions in competition and street applications. This sealed bearing assembly prevents fluid leakage and contamination at the output shaft, extending transmission longevity under demanding conditions. Whether you're rebuilding a drag racing gearbox, street rod transmission, or maintaining a high-horsepower daily driver, this kit addresses a common failure point in transmission sealing systems.

The integrated grease zerks allow controlled lubrication of bearing surfaces without disassembly, eliminating the need for repeated seal replacement cycles. BERT's design uses precision-machined ball seals that maintain consistent contact with rotating shafts while accommodating normal wear, vibration, and thermal cycling—critical when transmission temperatures climb during sustained acceleration or towing. The grease zerk provision enables mechanics to perform preventive maintenance in minutes, reducing downtime and extending component life significantly compared to sealed-only designs.

This kit is essential for anyone building or rebuilding manual or automatic transmissions, particularly those handling elevated horsepower outputs or frequent track duty. Drag racers, circle track competitors, and serious street performers rely on BERT's sealing solutions to eliminate fluid loss and maintain consistent shift quality lap after lap. Installation is straightforward for mechanics with transmission assembly experience, and the compact design (3.55 x 0.55 x 4.05 inches) fits standard transmission housings across most BERT applications. Keep this kit on hand as preventive maintenance or include it in any major transmission overhaul.