HD Replacement Planetary Set
This heavy duty planetary set has all pinion gears, center gear, auxiliary gears and flange gear replaced with 9310 steel billet gears. The gears are housed in an OEM ductile iron carrier and output shaft along with a new TCI 4140 forged ring gear. Available for standard length and shorty applications. Recommended for use in Stock, Super Stock and some Bracket Classes.

Super Set
The Super Set replaces the pinion gears, center gear, auxiliary gears and flange gear with 9310 steel billet gears. The A536-80 ductile iron carrier with TCI's new 4140 forged ring gear and output shaft is utilized. Recommended for use in Super Classes - Heads-up Pro Tree Racing.

Vasco Gear Set
This unit uses Vasco 300 steel for all gears: pinion, center, auxiliary and flange. TCI's houses these gears in their A536-80 ductile iron carrier and use a new 4140 forged ring gear and output shaft. Recommended for Super Classes, Competition, Top Sportsman and Top Dragster.

Lightweight Units
The Lightweight Units offer the maximum benefit by reducing rotating weight as much as possible while retaining strength and durability. To reduce weight the output shaft is gun drilled while the reverse ring gear and carrier are lightened as much as possible with out sacrificing their integrity.