Drivetrain› 4x4 Driveline Components

RCV Performance

~(6 lbs. 8X8X8)~ RCV 300M 40 Spline CV Rebuild Kit - Rockwell Series 30 Fixed

$599.95

SKU: R017 CVJRCK-40-R

In Stock
In Stock
Ships by Jun 17
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Non-Returnable Item
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Description

The RCV Performance Big Bell 47/40 Spline axle set is a custom solution designed for Rockwell or Custom Dana 80 axles. It includes two Big Bell CV assemblies with 47-spline stub shafts and two custom-length 40-spline 4340 inner shafts. The inner shafts are made-to-order based on customer-provided measurements.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandRCV Performance
Part NumberR017 CVJRCK-40-R

Videos

WFO 40 Spline RCV Super 60

WFO 40 Spline RCV Super 60
RCV Axle Shafts. America!

RCV Axle Shafts. America!

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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