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The RPM True-Track Rear A-arm Conversion Kit Eliminates One Of The Biggest Headaches Associated With The Incredibly Popular Maxx Line Of Trucks. Rear Toe Angles Are Nearly Impossible To Set Accurately And There Isn’t A Gauge Currently Made That Can Tell The T-Maxx / E-Maxx Owner If Each Individual Wheel’s Toe Angle Is Set Correctly in Relation To The Chassis. Our Rear End Kit Completely Eliminates The Rear Toe Link, Locking In The Rear Toe Angle At A Solid Negative 1.5 Degrees Per Side For A Total Rear Toe Of Negative 3 Degrees (of Toe-In), effectively Eliminating Rear bump Steer! Our Design Retains The Stock Upper Pivot Ball In The RPM Axle Carrier To Allow Precise Camber Adjustments While The Lower Pivot Ball Has Been Eliminated In Favor Of A Rock-solid, Beefy 4mm Diameter Hinge Pin That Locks-in The Rear Toe Angles For Race Winning Consistency. All Aspects Of The RPM Rear End Conversion Have Been Beefed Up For Rugged Durability And Slop Free Movement Throughout Its Range Of Travel. We’ve Completely Redesigned The Rear End Yet All Stock Suspension Geometry Has Been Retained. Additionally, We’ve Incorporated Our Oversized Bearings (3mm Larger In Diameter Than Stock) Into The Design, Providing 2mm More Bearing Contact With The Axle While Doubling The Bearing Load Rating & Tripling The Fatigue Rating Over Stock Bearings. So Does All This Add Weight? Not A Single Gram! The Entire RPM Rear End Kit Weighs In At Exactly The Same As The Stock Components That Are Replaced!
"Bump Steer" Defined: So What Is "bump Steer"? Bump Steer Is A Change In The Wheel's Toe Angle Caused By The Suspension Moving Up Or Down. Bump Steer Is Inherent To The Geometry Of The Suspension And Steering System, And Has Nothing To Do With Turning The Steering Wheel. The Effect Of Bump Steer Is For The Wheel To Toe-in Or Toe-out When The Suspension Moves Up Or Down. This Toe Change Or “steering” Occurs Any Time The Suspension Moves, Whether It Is From Body Roll, Brake-dive, Or Hitting A Bump In The Road. Bump Steer Is Undesirable Because The Suspension Is Steering The Car Instead Of The Driver.
Bump Steer Is Most Common On The Front End Of R/C Vehicles Due To The Unavoidable Use Of A Tie Rod To Allow The Vehicle To Steer. Vehicles With A Toe Link Rear End Such As The T-Maxx Also Have A Similar Amount Of Bump Steer In The Rear Because The Axle Carrier Isn't Locked In A Fixed Position And Is Constantly Being Pushed And Pulled By The Toe Link As The Suspension Moves Up And Down. This Doesn't Account For The Slop In The Rod Ends Of The Toe Link Either Which Causes Even More Toe Angle Changes. See For Yourself. Look Down At Your Vehicle From The Top And Compress The Suspension. See What Happens To The Rear Toe Angle? Each Wheel Changes By At Least A Degree Or Two Which Can Be Quite Significant. Now Imagine That Amount Of Movement While Your Suspension Arms Are Moving Independently From Each Other And You'll Understand Why The True-Track Kit Is Such An Effective Tool To Dramatically Improve Suspension Performance.
What’s Included: Our Rear End Kit Consists Of Two Upper Rear A-arms, Two Lower Rear A-arms, Two Beefy Rear Axle Carriers, Two Outer 6x15mm Sealed Bearings, Two Inner 12x21mm Sealed Bearings, Two Aluminum Pivot Ball Setscrews, Two Delrin Pivot Ball Bushing Cups (with More Than Twice The Contact Area On The Pivot Ball As Stock Setscrews!), Two 4mm Diameter Tool Steel Hinge Pins & Enough E-clips To Get The Job Done (4 Minimum).
Recommendations: The RPM True-Track System Is Designed To Match RPM A-arms (Part #80462 & #80465 - 2 Packages Needed) & Axle Carriers (#80582 & #80585 - 1 Package Needed) Currently Available For The T/E-Maxx. With The True-Track System Mounted At The Rear And A Set Of RPM Replacement A-arms & Axle Carriers Up Front, You Are Assured The Best Performing & Most Indestructible A-arm / Axle Carrier Combination Possible!
Tech Notes: This Rear End Kit Works On All T-Maxx 2.5R, T-Maxx 3.3 & E-Maxx 16.8 Versions. It Can Be Adapted To Work On Earlier Versions Of The T/E-Maxx Such As The T-Maxx 1.5, T-Maxx 2.5, S-Maxx & Earlier E-Maxx Versions Simply By Upgrading The Axles & Tie Rods To T-Maxx 3.3 Versions. One Kit Will Complete The Entire Rear End Of Your Truck.
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