Planetaries & Gear Sets

Get Set Up like the Pro Stockers

Hughes Performance is proud to present its all billet planetary gear set for aluminum Powerglides — with a 1.76:1 gear ratio that’s ideal for today’s big-cubic-inch motors. This extremely stout gear set features new E9310 gears (eight pieces), a new forged ring gear a new forged planetary housing, 9310 pins, and new washers and needle bearings. The forged billet output shaft offers excellent torsion memory, which means you can twist it, but they virtually can’t break it — and it’s available in long, medium (4 link dragster ) and “shorty” versions.

Other aftermarket companies only offer planetary sets with steeper gears, but Hughes knows they just don’t work as well as 1.76’s with the torque output of the big motors today — not to mention the hard-hit/soft transition torque converters and improved tire compounds.

Pro Stock drivers run a setup just like this because they want less rpm drop between gears, and Hughes Performance’s new “Bulletproof” 1.76 gear set is being proven right now on the track by the Hughes Motorsports racing team.

We have had so much success with this assembly, we now have an even higher low gear ratio. We have released a 1.69 to 1 low gearset, which will give you an even deeper low gear ratio. this is even more ideal for the higher horsepower and torque outputs of today’s motors. In addition, we have manufactured these gears with a spur (straight) cut design with even more strength for absorbing more horsepower and torque than ever before! The design also eliminates most of the end thrust of helical units which allows for higher m.p.h. in most cases.

In addition, we have a 1.80 to 1 low gearset, giving you three selections of gear ratios for most any type drag racing, no matter what weight, horsepower or hot rod you race.

The problem:
When you release the transbrake during launch in one of the newly designed dragsters with a four-link suspension, the suspension will load and actually pull the coupler in a Powerglide to within a quarter-inch of disengagement.

The solution:
Hughes Performance’s new “lengthened” shorty for Powerglide assemblies. It’s longer output shaft compensates for suspension travel and allows for normal engagement between the transmission output shaft and the coupler.

Hughes offers 4 versions of this kit, one with 1.76 low gear, the company’s custom E9310 gearset (part number HP7469L, which includes a forged carrier housing and ring gear, 9310 pins and new washers and needle bearings) and one with 4140 gears (part number HP7479L, which includes an OEM carrier housing built with new washers and needle bearings). Versions come with Hughes’ 4340 forged output shaft and custom billet aluminum cover.

Two other versions are also available – HP7449L w/1.69 low gear & HP7445L w/1.80 low gear. All ratios come with a custom billet aluminum cover.

Other aftermarket companies only offer planetary sets with steeper gears, but Hughes knows they just don’t work as well as 1.76’s with the torque output of the big motors today — not to mention the hard-hit/soft transition torque converters and improved tire compounds. We have recently followed this philosophy further and offer our new 1.69 ratio planetary, complete with all the parts associated with our “B2” carrier, with the 9310 gearing manufactured with the spur gear design. This ratio has become very popular among the top sportsman and other heads up racing categories.

Medium: HP7449L
Short: HP7449
Long: HP7448

Coupled with our “Big Red” GM104 — this is a winning combination!

Planetary Gear Sets

Planetary Gear Sets