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Dana Spicer · Drivetrain
6.3-53-21
In stock · ships from Knoxville
The Spicer 6.3-53-21 is a splined midship stub shaft for heavy-duty truck driveshafts.
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Verified fitment for 2 applications
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Fits driveshafts using a 4.062" outer diameter tube with 0.165" wall thickness and a 2.350" 46-spline stub shaft. Always verify critical dimensions (spline OD, bearing diameter, tube size) before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 3 of 3.
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It connects the driveshaft tube to a slip yoke or companion flange, allowing the driveline to accommodate length changes and angular movement. This fine-spline stub shaft is part of the Spicer 1760 series and is typically replaced during driveline rebuilds when splines are worn or damaged, or when upgrading to a stronger fine-spline connection.
Part Number: 6.3-53-21
FINE SPL 661 MIDSHIP TUBE 6.3-53-21
Category: Driveline
Unit: ea
Dealer: Post Onsite
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