UMI Performance 93-02 GM F-Body Upper and Lower A-Arm Hardware Kit

Zinc Plated Class 10.9 Front A-Arm Hardware Kit for the 1993-2002 Camaro and Firebird

Aftermarket tubular front A-arms rarely reuse factory fasteners cleanly, and UMI built this kit as the replacement hardware for a fourth generation F-body front end. It supplies the bolts, nylon lock nuts and washers for both the upper and the lower A-arms, and UMI states it works with the factory K-member as well as aftermarket K-members.

Key Features

• Replacement fastener kit for installing aftermarket upper and lower front A-arms.
• Bolts are metric class 10.9 high grade, which UMI and its dealers describe as equal in strength to American Grade 8.
• Nylon insert lock nuts and washers are supplied with the bolts.
• Zinc plated finish for corrosion resistance under the front of the car.
• Covers the upper and the lower arms in one kit rather than one axle end at a time.
• UMI states the kit works with both the factory K-member and aftermarket K-members.
• Sold as a kit and listed by UMI as a direct bolt-on.

Fitment

UMI publishes no engine, transmission, axle, body style or trim restriction for this kit, so every 1993-2002 Camaro and Firebird is covered.

UMI frames the kit as hardware for aftermarket A-arms. It does not publish it as a factory A-arm fastener replacement, so it is listed here the way UMI describes it.

Specifications

What's Included

• Class 10.9 high grade bolts for the upper and lower front A-arms, quantity not published by UMI
• Nylon insert lock nuts, quantity not published by UMI
• Washers, quantity not published by UMI

About UMI Performance

UMI Performance designs and manufactures chassis and suspension parts at 509 Hemlock Street in Philipsburg, Pennsylvania, using North American raw material, in-house laser cutting, CNC bending and fixture welding. The 2303 kit sits in UMI's F-body front end range and is the same hardware UMI lists inside its FBS005 front end package, where it is called out as Grade 10.9 hardware with Ny-lock nuts.

FAQ

Both descriptions point at the same bolts. UMI specifies metric class 10.9 high grade bolts, and its dealers add the clarifying phrase equal in strength to American Grade 8. Dealer page titles that simply say Grade 8 are using that equivalence as shorthand. This listing publishes the metric class, which is the value UMI itself states.

UMI does not publish counts, and no dealer record itemises them either. The kit is sold as the hardware for one car's upper and lower front A-arms. If you need exact counts before ordering, count the fasteners your new arms require and ask us to confirm against the current pack.

Yes. UMI states the kit works with the factory K-member and with aftermarket K-members, which is why it is sold as a general fourth generation front end hardware kit rather than a K-member specific pack.

No. UMI describes the contents only as bolts, nylon lock nuts and washers for the upper and lower A-arms. Nothing else is published, so treat ball joint, sway bar and shock hardware as separate.

No. UMI publishes this kit for 1993-2002 F-body cars only. The third generation front end uses different geometry and UMI does not list it as an application.

UMI publishes none for this part number and no UMI installation sheet exists for it, so this listing does not print one. Use the applicable General Motors factory service information for your model year and the specific joint you are fastening. Torque figures printed on UMI sheets for other part numbers apply to those parts, not to this kit.

UMI publishes installation sheets for parts with a specific fitting procedure. It publishes none for this kit, and the dealer records for it carry no instructions download, unlike the records for UMI parts that do have a sheet. The bolts follow the fitting instructions of the A-arms you are installing.

Zinc plating is a corrosion resistant coating, not a stainless finish. UMI publishes the finish as zinc and publishes no salt spray rating, so plan on the same care you would give any plated chassis fastener.

They are two different documents. UMI's policies page publishes a two year limited warranty to the original purchaser against defects in materials and workmanship, with exclusions for normal wear on bushings and bearings, improper installation, alteration and exceeding the design limits of the part. The disclaimer printed on UMI's installation sheets is narrower and says parts are warranted to be free of defect at the time of purchase, with remedy limited to replacement. Read the policies page as the customer facing warranty and the sheet as the in-box legal notice. Neither one is a Black Ops Auto Works warranty.

Dealer records for this part number display a Proposition 65 notice block, but the exact warning wording was not readable from any source we checked, so no warning text is reproduced here. Ask us before purchase if you need the exact statement for a California delivery.

Installation Instructions

1. Follow the installation instructions supplied with the aftermarket upper and lower A-arms you are fitting, since this kit supplies their fasteners rather than a procedure of its own.
2. Support the front of the vehicle safely and let the front suspension hang before removing any control arm fastener.
3. Replace one fastener at a time so the arm stays located, fitting the class 10.9 bolt with a washer and a new nylon insert lock nut.
4. Leave every fastener finger tight until both arms are hung and the ball joints are engaged.
5. Lower the car to ride height before final tightening so the bushings are clamped at their normal loaded position.
6. Use the applicable General Motors factory service information for your model year for the final torque on each joint, because UMI publishes no torque values for this kit.
7. Recheck all fasteners after the first drive and again after the first few hundred miles.

UMI publishes no installation sheet for part 2303, and the dealer records for it carry no instructions download. The steps above are a safe sequence for fitting supplied hardware and are not a substitute for the instructions that come with your A-arms or for GM factory service information.