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Plymouth Pb150 Radius Arm Hardware Kits

Plymouth Pb150 Radius arm hardware kits

Starting at low prices, AutoBuffy stocks multiple radius arm hardware kits from top OE-quality brands for the Plymouth Pb150. This kit replaces the bolts, bushings, washers, and nuts that secure the radius arm to the frame and axle. When these fasteners or bushings wear out, the front axle loses its precise fore-aft location, causing wandering, pulling, and accelerated tire wear.

Signs your Plymouth Pb150 needs new radius arm hardware

  • Front end wanders or drifts on straight, flat roads without input from the steering wheel
  • Clunking or knocking noise from the front suspension when hitting bumps or during braking
  • Visible rust, corrosion, or shearing on the radius arm mounting bolt or nut
  • Uneven or cupped front tire wear caused by the axle shifting under acceleration or braking
  • Steering pulls to one side, especially noticeable when you accelerate or decelerate
  • Loose or collapsed radius arm bushing visible on inspection — bushing appears cracked, torn, or extruded past its sleeve

Which radius arm hardware kit should you buy for your Plymouth Pb150?

The most important decision is whether you need just the fastener hardware — bolts, nuts, and washers — or a complete kit that also includes replacement bushings. Most mechanics recommend replacing bushings and hardware together since both wear at similar rates and labor overlap is high. Material grade and coating matter for off-road or rust-belt vehicles.

Fastener-only kit (OE grade)
Best for
Vehicles with still-serviceable bushings; budget rebuild
What you get
Replacement bolt, nut, flat washers, and cotter pin to factory spec grade
Complete kit with OE-style rubber bushings
Best for
Daily drivers needing a straightforward, like-for-like restoration
What you get
All fasteners plus pre-sized rubber bushings matched to stock dimensions
Complete kit with polyurethane bushings
Best for
Tow vehicles, lifted trucks, or off-road use where firmer axle location is preferred
What you get
All fasteners plus stiffer poly bushings for reduced deflection under load; may transmit more NVH
Heavy-duty or grade-8 hardware upgrade kit
Best for
High-mileage work trucks, frequent towing, or vehicles with stripped OE hardware
What you get
Higher-tensile bolts and hardened washers for added clamping strength; pairs with any bushing type

Replacing radius arm hardware on a Plymouth Pb150

Moderate⏱ 1.5–3 hours per sideFloor jack and jack standsBreaker bar and socket setTorque wrenchBushing press or large C-clamp (if replacing bushings)Penetrating oil

Safely raise and support the vehicle, then support the front axle independently so it does not drop when the radius arm fastener is removed. Soak corroded hardware with penetrating oil well in advance to ease removal. After installing new bushings and hardware, torque all fasteners to the manufacturer's specified range — never leave them hand-tight — and have the front-end alignment checked before returning the vehicle to regular service.

Frequently asked questions

How much does it cost to replace radius arm hardware kits on a Plymouth Pb150?
Parts start at low prices for a Plymouth Pb150 radius arm hardware kit at AutoBuffy. Add shop labor — typically one to two hours per side — and total repair cost will vary by location and whether bushings are included. Doing it yourself keeps the job close to the parts cost alone.
Can I replace just the bolt and nut, or do I need the whole radius arm hardware kit for my Plymouth Pb150?
You can replace fasteners alone if the bushings are still in good shape — no cracking, tearing, or excessive movement. In practice, if the bolt has been loose long enough to cause symptoms, the bushing bore is often wallowed out too. Inspecting the bushing before ordering saves a second disassembly.
How long do radius arm bushings and hardware last on a Plymouth Pb150?
Lifespan varies widely based on use. On a highway-driven vehicle in a dry climate, hardware and rubber bushings can last many years. Off-road use, frequent towing, road salt exposure, and loose fasteners that go unaddressed all shorten service life significantly. Inspect them any time the front axle is accessible.
Is replacing radius arm hardware on a Plymouth Pb150 something I can do at home?
Yes, with basic hand tools and a jack stand setup it is a manageable DIY job. The main challenge is breaking loose corroded hardware and properly supporting the axle during removal. Torquing the new fasteners to the manufacturer's specification range is critical — under-torquing is what causes premature wear and noise.
Will worn radius arm hardware cause my Plymouth Pb150 to fail an alignment?
Yes. The radius arm controls the fore-aft position of the front axle. Loose or collapsed hardware allows the axle to shift, which throws off caster and can move toe outside alignment tolerances. Always replace worn radius arm hardware before performing a front-end alignment — otherwise the alignment will not hold.
Do I need to replace the radius arm hardware on both sides of my Plymouth Pb150 at the same time?
It is strongly recommended. Both sides experience the same age, mileage, and corrosion exposure. Replacing only one side often results in the other failing shortly after, requiring a second round of labor. Matching hardware and bushings side-to-side also ensures balanced steering geometry and even wear going forward.

More parts for your Plymouth Pb150

Multi-Purpose Light Bulb SocketIgnition Lock CylinderControl Arm BushingAuxiliary Engine Cooling Fan AssemblyPre Heat HoseEngine Air Intake HoseStarter BushingBrake Light Switch

Radius arm hardware kits for other Plymouth models

Plymouth PB300Plymouth PB300 VanPlymouth PB250Plymouth PB350Plymouth PB200 VanPlymouth PB100 Van