RCV Performance

Dana 60 | Ultimate 300M | CV Axle Set | GM 1-Ton | ('75-'87), K30 & V30 ('77-'91)

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  • Dana 60 | Ultimate 300M | CV Axle Set | GM 1-Ton | ('75-'87), K30 & V30 ('77-'91)
  • Dana 60 | Ultimate 300M | CV Axle Set | GM 1-Ton | ('75-'87), K30 & V30 ('77-'91)



RCV Performance Ultimate 300M CV Axles simply replace your GM Dana 60 U-joint axle shafts with a high-strength constant velocity design.. These CV axles were designed at the request of champion off road racers. They wanted the smoothness of RCV Ultimate CV axles with additional strength to handle major league abuse. We came to their rescue with Ultimate CV Axles made from 300M alloy steel.

These axles are just as tough at a straight angle as they are at extreme angles - where U-joints are weakest. Ultimate 300M CV Axles also eliminate U-joint binding to allow smooth transfer power to the ground. Even if you have big tires and big power there are no worries. Ultimate CV Axles are low maintenance and operate with a smoothness you can feel - whether off road or on the street. And we back it all with a "No Questions Asked" limited lifetime warranty.

Axle set includes right and left CV axle shafts, outer stubs, SST seals and installation tool, installation instructions, synthetic moly grease, and installation hardware. Black oxide coating is standard. Optional nickel plating is available for extra corrosion resistance in salty environments.


Axle Model


OEM Inner Spline

OEM Outer Spline

RCV Inner Spline

RCV Outer Spline

OEM Left Inner Axle Length

OEM Right Inner Axle Length

OEM Outer Stub Axle Length

Warranty Voided

Boot Technology

'75-'87 GM 1-Ton, '77-'91 K30 & V30. Includes left and right axles

Dana 60

Non Unit Bearing





35.1" (300M Shaft)

17.67" (300M Shaft)


Over 47" Tire

 If you have any questions about these RCV Performance Axles or any of our other 4 Wheel Drive / Off-Road parts please contact us. We are here to help.


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Warranty Information

RCV warranties mechanical failure of the product for the duration of ownership by the original purchaser. “Mechanical failure” is defined as failure of a component function while operating under design constraints. All claims are subject to review and acceptance by RCV in its sole discretion. This axle warranty voids if use with tires over 47" tall.
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