Lisle U-Joint Puller Medium 1.25–1.7 in – Heat-Treated Threads, Protects Driveshafts

Lisle 42900 is a medium-size u-joint puller built to remove sealed u-joint caps quickly while protecting driveshafts, yokes and bearing caps.

If you work on drive train servicing, the Lisle 42900 saves time and reduces accidental damage when removing stubborn sealed u-joint caps. Designed for automotive, medium-duty truck, agricultural and light industrial applications, this tool fits 1.25" to 1.7" bearing caps and uses heat-treated threads and castings for long life. It’s the medium option in Lisle’s range, offering the reach and strength needed for most passenger vehicles and many heavier machines.

How does the Lisle 42900 remove u-joint caps without harming the driveshaft?

The 42900 applies controlled pulling force to extract sealed caps rather than prying or hammering, which can score yokes or deform bearing cups. Its design centers the load and draws the cap straight out, minimizing side-loads and marring.

• Fits tightly to cap for centered pulling
• Removes caps without hammer blows or pry leverage
• Prevents yoke distortion and bearing cap damage
• Suitable for sealed applications where careful removal is critical

What vehicle sizes and bearing cap diameters will this medium puller handle?

The Lisle 42900 is specified for bearing cap diameters from 1.25 inches up to 1.7 inches, which covers most cars, SUVs, many light trucks and a range of agricultural or light industrial drive components. If your caps fall inside that range, this tool provides a reliable fit and extraction force.

• Range: 1.25" to 1.7" bearing caps
• Intended for cars, medium-duty trucks, ag equipment, light industrial vehicles
• Two-size system in Lisle lineup — this is the medium option
• Vehicle-specific fit type; confirm cap diameter before use

What makes the construction durable enough for repeated shop use?

Lisle built the 42900 with heat-treated threads and a heat-treated casting to stand up to repeated torque and the occasional heavy seizure. The hardened components resist wear and thread deformation, giving consistent performance over years of regular service use.

• Heat-treated threads for longer life and reliable tightening
• Durable cast body resists cracking under load
• Engineered to withstand shop stresses and repeated removals
• Simple, serviceable design that tolerates field conditions

How should I use the 42900 safely and effectively?

Match the puller to the cap diameter, position the tool squarely on the cap, and tighten evenly to pull the cap straight out. Use steady, controlled turns rather than sudden impacts; if caps are heavily corroded, apply penetrating lubricant first and work gradually.

• Confirm cap diameter fits the 1.25"–1.7" range before starting
• Seat the puller squarely on the cap to center the force
• Turn steadily; avoid hammer strikes on the puller body
• Use penetrating oil on seized caps and protect adjacent surfaces

Who is this for: technicians, home mechanics and fleet maintenance crews who frequently service u-joints and need a dependable, medium-size extractor that preserves yokes and bearing caps. If you work on passenger cars, many light trucks, agricultural equipment or light industrial drives and you want a durable, heat-treated tool that fits 1.25–1.7" caps, the Lisle 42900 is sized and built for those tasks.