TSR "Pro Seal" Kyosho Ultima RB6.6 HD Gear Diff Conversion and Shim Set OS111041-RB6.6-C

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Availability: In stock

Set Includes:

1 Genuine Kyosho Diff Gear and Cover
1 Genuine Kyosho Diff Gear Case Seal
2 Genuine Kyosho Cross Pins
2 Genuine Kyosho Sun Gear Pins
2 Genuine Kyosho Outdrive Washer
2 Genuine Kyosho Sun Gear Washer
2 Genuine Kyosho HD Sun Gears
2 Genuine Kyosho Gear Diff Outdrives
2 Pro Seal Pure Silicone O-Rings (slim version)
4 Genuine Kyosho HD Planet Gears
4 TSR 12.9HT M2.5x6mm Screws
4 TSR 10x12x0.1 Outdrive Shims
4 TSR 10x12x0.2 Outdrive Shims
2 TSR 5x7x0.1 Idler Shims
2 TSR 5x7x0.2 Idler Shims
2 TSR 5x7x0.3 Idler Shims

TSR "Pro Seal" Kyosho Ultima RB6.6 HD Gear Diff Conversion and Shim Set OS111041-RB6.6-C

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  • Shown Assembled w/ Optional Aluminum Gear Diff Cover

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TSR "Pro Seal" Gear Differential Conversion / Upgrade Sets makes it easy to adapt your ball differential for high traction racing surfaces for improved performance. 1/8th scale race vehicles have enjoyed the benefits of gear differentials for years and now 1/8th scale tech is available for 1/10th scale racers. The addition of gear differentials in 1/10th scale racing has provided diff action which can handle power more efficiently and stay smoother longer between rebuilds.  Once the time arrives to convert or preform a full rebuild on your transmission our compete gear diff sets containing pure silicone diff seals provides all the components required in one convenient package.

TSR “Pro Seal” Gear Diff Conversion Sets make it easy to upgrade your differential for more durability and improved performance.  The set includes everything you need to make the conversion seamless as possible. 

At TSR, we race and understand the kind of discipline and commitment needed to win at the highest level. Time in the pits is time lost on the track and our goal is to keep you out of the pits and out on the track.


Made in Japan

1 set

Print or Download Install Sheet: "Pro Seal" Kyosho Ultima Gear Diff Rebuild / Conversion Install sheet