Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®


Drive Shaft Safety Loop

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L brackets are 10.75" x 5.50". Loop brackets are 5.5" inside to inside, 3.875" tall.
Drive Shaft Safety Loop

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Q & A

What's in the Box

This driveshaft safety loop holds the drive shaft in place in case of universal joint failure. Made from 2" x 1⁄4" hot rolled steel with grade 5 bolts. Bolt-on installation.

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Universal Drive Shaft U-Bolts, 1-1/8 Inch Cap
(Part #91048314)
                        Speedway universal driveshaft U-bolts are forged steel for 50% more strength than standard units. Fits U-joints with 1-1/8" diameter caps.
1310 / 1330 Series Chevy to Ford U-Joint
(Part #91048316)

High quality, heat treated forged steel replacement U-joints. This u-joint only works with clips outside the end caps. Clips included. The caps do not have grooves for clips.

GM Front Slip Yoke, 5 1/2 Inch
(Part #80292415)

Stock length (5-1/2") slip yoke for GM applications with 1-3/16" x 27-spline output shaft. Works with 1310 series U-joints.

  • This yoke measures 5-1/2" from tip to centerline of u-joint
  • This yoke is grooved for an "external" u-joint cap retaining clip
  • The machined length on the yoke is 3-3/4"

The expressed measurement or length of the slip yoke is taken from the center of the u-joint to tip, not overall. 

Fits over the output shaft of the following transmissions: 

  • Common GM/Saginaw 3 & 4 speed transmissions with a 1-3/16" x 27 spline output shaft
  • Powerglide, T-350, 700R-4, 200R-4, and 4L60 automatic transmissions
  • Muncie M20/M21 and Borg Warner T-5, T-10 & T-56 27-spline manual transmissions
Ford C4 Transmission Drive Shaft Slip Yoke
(Part #80292440)

This Ford C-4 driveshaft slip yoke measures 6.5" from the center of the U-joint cup to the front end of the yoke. Fits transmissions with 28 spline tailshafts. Accepts 1310 style U-joints (popular Chevy) with 1-1/16" cups and a spread of 3-7/32".


Note: Due to the length of the yoke, it will fit C4 transmissions ONLY, and is not recommended for use on an AOD transmission. The expressed measurement or length of the slip yoke is taken from the center of the u-joint to tip, not overall.