CPP FitRite Ball Joint & Tie Rod Guide For Classic Cars & Trucks


What Are CPP FitRite Ball Joints and Tie Rod Ends?
CPP FitRite ball joints and tie rod ends are modernized steering and suspension components designed for classic cars and trucks. Ball joints provide pivot points between the control arms and steering knuckles, while tie rod ends transfer steering movement through the steering linkage to help turn the wheels.
CPP FitRite components feature low-friction ball designs, improved dust-boot retention, and flanged lock nuts that provide greater thread engagement and a larger contact area than traditional castle nuts. They are designed to improve component fitment, steering response, smooth operation, and long-term reliability when rebuilding a factory front end or servicing a compatible CPP suspension or steering system.
Upgraded for Strength, Smooth Operation, and Longer Service Life
CPP is continuing to modernize its ball joint and tie rod end product line. The updated components are designed to improve strength, provide smooth movement, and help protect critical steering and suspension connections from premature wear.
Low-Friction Ball Design: The internal ball design provides smooth, low-friction movement for consistent steering response and dependable suspension operation.
Improved Dust-Boot Retention: Depending on the application, updated components feature either a press-fit or wire-retained dust boot. These designs help keep the boot securely positioned while reducing the chance of dirt, moisture, and road debris entering the joint.
Flanged Lock Nut: The traditional castle nut and cotter key have been replaced with a modern flanged lock nut on updated applications. The new nut provides nearly twice the thread engagement along with a larger contact area.
Improved Component Compatibility: The modernized design offers improved fitment across different spindle and center-link brands, making it a dependable option for factory replacements, restorations, and performance upgrades.
Flanged Lock Nut vs. Castle Nut and Cotter Key


| Feature | Traditional Castle Nut | CPP Flanged Lock Nut |
|---|---|---|
| Thread Engagement | Limited thread contact | Nearly twice the thread engagement |
| Contact Area | Smaller nut contact surface | Larger flanged contact area |
| Locking Method | Cotter key through the ball-joint stud | Integrated locking nut |
| Installation | Cotter-key hole must align correctly | No cotter key required |
| Fitment | May vary between component brands | Designed for improved spindle and center-link fitment |
| Design | Traditional service design | Modernized CPP design |
The increased thread engagement helps the nut make greater contact with the ball-joint or tie-rod stud. The larger flange also distributes the clamping load across a wider surface.
Installation note: Some applications include an internal hex in the stud to help prevent it from turning while the lock nut is tightened. An Allen wrench is not included.
Ball Joint and Tie Rod End Applications
| Part Number | Product Name | Short Description |
|---|---|---|
| BJ-10157 | Upper Ball Joint, 1955-70 Chevy Full Size | 1955-70 Chevy Full Size Upper Ball Joint, Flanged Lock Nut Design |
| CPP407 | Lower Ball Joint, 1962-67 Nova, Chevy II | 1962-67 Nova, Chevy II Lower Ball Joint, Sealed Boot, Flanged Lock Nut Design |
| ES2128 | Outer Tie Rod End, Mustang II, 9/16-18 RH | Mustang II Outer Tie Rod End, 9/16-18 RH Thread, 5.00 in Length, Flanged Lock Nut Design |
| ES2150R | Outer Tie Rod End, Mustang II, 9/16-18 RH | Mustang II Outer Tie Rod End, 9/16-18 RH Thread, 5.75 in Length, Flanged Lock Nut Design |
| ES234L | Outer Tie Rod End, 1955-57 Chevy Full Size, 5/8-18 LH | 1955-57 Chevy Full Size Outer Tie Rod End, 5/8-18 LH Thread, Flanged Lock Nut Design |
| ES323L | Outer Tie Rod End, 1958-64 Chevy Full Size, 1960-64 C10, 1963-67 Corvette, 5/8-18 LH | 1958-64 Chevy Full Size, 1960-64 C10, 1963-67 Corvette Outer Tie Rod End, 5/8-18 LH Thread, Flanged Lock Nut Design |
| ES350L | Outer Tie Rod End, 1965-70 C10, 1965-68 Chevy Full Size, 5/8-18 LH | 1965-70 C10, 1965-68 Chevy Full Size Outer Tie Rod End, 5/8-18 LH Thread, Flanged Lock Nut Design |
| ES358L | Outer Tie Rod End, 1965-70 C20/C30, 11/16-18 RH | 1965-70 C20/C30 Outer Tie Rod End, 11/16-18 RH Thread, Flanged Lock Nut Design |
| ES370R | Inner Tie Rod End, 1965-70 C10, G10, P10, 1965-68 Chevy Full Size, 5/8-18 RH | 1965-70 C10, G10, P10, 1965-68 Chevy Full Size Inner Tie Rod End, 5/8-18 RH Thread, Flanged Lock Nut Design |
| ES406L | Inner Tie Rod End, 1971-72 GM A-Body, 11/16-18 LH | 1971-72 GM A-Body Inner Tie Rod End, 11/16-18 LH Thread, Flanged Lock Nut Design |
| ES406R | Outer Tie Rod End, 1971-72 GM A-Body, 11/16-18 RH | 1971-72 GM A-Body Outer Tie Rod End, 11/16-18 RH Thread, Flanged Lock Nut Design |
| ES409L | Inner Tie Rod End, 1973-87 Chevy Truck, 11/16-18 LH | 1973-87 Chevy Truck Inner Tie Rod End, 11/16-18 LH Thread, Flanged Lock Nut Design |
| ES409R | Outer Tie Rod End, 1973-87 Chevy Truck, 11/16-18 RH | 1973-87 Chevy Truck Outer Tie Rod End, 11/16-18 RH Thread, Flanged Lock Nut Design |
| ES416L | Inner Tie Rod End, 1947-59 Chevy Truck, 1948-64 Ford Truck, 11/16-18 LH | 1947-59 Chevy Truck, 1948-64 Ford Truck Inner Tie Rod End, 11/16-18 LH Thread, Flanged Lock Nut Design |
| ES416R | Outer Tie Rod End, 1947-59 Chevy Truck, 1948-64 Ford Truck, 11/16-18 RH | 1947-59 Chevy Truck, 1948-64 Ford Truck Outer Tie Rod End, 11/16-18 RH Thread, Flanged Lock Nut Design |
| ES429R | Outer Tie Rod End, Mustang II, 9/16-18 RH | Mustang II Outer Tie Rod End, 9/16-18 RH Thread, 3.42 in Length, Flanged Lock Nut Design |
| ES577 | Inner Tie Rod End, 1955-57 Chevy Full Size, 11/16-18 RH | 1955-57 Chevy Full Size Inner Tie Rod End, 11/16-18 RH Thread, Flanged Lock Nut Design |
| FA1014 | Lower Ball Joint, 1971-87 C10 | 1971-87 C10 Lower Ball Joint, Flanged Lock Nut Design |
| FA219 | Lower Ball Joint, 1955-57 Chevy Full Size | 1955-57 Chevy Full Size Lower Ball Joint, Flanged Lock Nut Design |
| FA418G | Upper Ball Joint, 1965-69 Ford Mustang, 1963-69 Ford Falcon, 4 Bolt | 1965-69 Ford Mustang, 1963-69 Ford Falcon Upper Ball Joint, 4 Bolt, Flanged Lock Nut Design |
| FA420 | Lower Ball Joint, 1962-76 Mopar A-Body, 1965-72 Mopar B-Body, 1970-72 Mopar E-Body, Disc Brake, RH | 1962-76 Mopar A-Body, 1965-72 Mopar B-Body, 1970-72 Mopar E-Body Lower Ball Joint, Disc Brake, RH, Flanged Lock Nut Design |
| FA421 | Lower Ball Joint, 1962-76 Mopar A-Body, 1965-72 Mopar B-Body, 1970-72 Mopar E-Body, Disc Brake, LH | 1962-76 Mopar A-Body, 1965-72 Mopar B-Body, 1970-72 Mopar E-Body Lower Ball Joint, Disc Brake, LH, Flanged Lock Nut Design |
| FA443 | Idler Arm, 1964, 1968-72 GM A-Body, 13/16 | 1964, 1968-72 GM A-Body Idler Arm, 13/16 |
| FA481 | Lower Ball Joint, 1963-70 C10 | 1963-70 C10 Lower Ball Joint, Flanged Lock Nut Design |
| FA570 | Idler Arm, 1967-70 Ford Mustang, Manual Steering | 1967-70 Ford Mustang Idler Arm, Manual Steering |
| FA619 | FitRite Idler Arm, Flange Style, 1967-82 C10 | 1967-82 C10 FitRite Idler Arm, Flange Style |
| FA6292 | Upper Ball Joint, 1988-98 C1500, 1995-00 Tahoe | 1988-98 C1500, 1995-00 Tahoe Upper Ball Joint, Flanged Lock Nut Design |
| FA6445 | Lower Ball Joint, 1988-98 C1500, 1995-00 Tahoe | 1988-98 C1500, 1995-00 Tahoe Lower Ball Joint, Flanged Lock Nut Design |
| FA681 | Upper Ball Joint, 1971-86 C20/C30 | 1971-86 C20/C30 Upper Ball Joint, Flanged Lock Nut Design |
| FA683 | Upper Ball Joint, 1971-72 C10 | 1971-72 C10 Upper Ball Joint, Flanged Lock Nut Design |
| FA688 | Upper Ball Joint, 1970-81 Camaro, 1978-88 GM G-Body, 1971-96 GM B-Body | 1970-81 Camaro, 1978-88 GM G-Body, 1971-96 GM B-Body Upper Ball Joint, Flanged Lock Nut Design |
| FA903 | Upper Ball Joint, 1973-87 C10 | 1973-87 C10 Upper Ball Joint, Flanged Lock Nut Design |
| FA921 | Lower Ball Joint, 1970-02 F-Body, 1978-88 GM G-Body, 1971-96 GM B-Body | 1970-02 F-Body, 1978-88 GM G-Body, 1971-96 GM B-Body Lower Ball Joint, Flanged Lock Nut Design |
| FA997 | Lower Ball Joint, 1971-86 C20/C30 | 1971-86 C20/C30 Lower Ball Joint, Flanged Lock Nut Design |


Popular Vehicle Applications


Frequently Asked Questions
When Should Ball Joints and Tie Rod Ends Be Replaced?
- Loose or inconsistent steering
- Wandering or difficulty holding a straight line
- Uneven front-tire wear
- Clunking from the front suspension
- Excessive movement in a ball joint or tie rod
- Torn, missing, or deteriorated dust boots
- Corrosion or contamination around the joint
- Difficulty maintaining proper wheel alignment





