UMI Performance Adjustable Extended Length Rear Upper Control Arms - Rod Ends - Red (1978-1996 GM B-Body) (3619-R)
Properly center your rear wheels, eliminate suspension binding, and fine-tune pinion angle with the UMI Performance "On-Car" Adjustable Extended Length Rear Upper Control Arms with Spherical Rod Ends (3619-R). Specially designed for 1978-1996 GM B-Body platforms—including the Chevrolet Impala SS, Caprice, Buick Roadmaster, and LeSabre—these heavy-duty upper control arms feature a +5/8" extended baseline length specifically engineered to pair with extended lower control arms to correct factory wheel arch mis-centering.
Constructed from heavy-wall DOM steel tubing with 0.250" CNC-machined mild steel mounting brackets, these arms feature 4140 chromoly threaded tube adapters and a heat-treated 1.000" solid 4140 chromoly turnbuckle adjuster. This double-adjustable design allows simple on-car adjustments of up to an additional 1/2" beyond the preset +5/8" extension without unbolting the arm from the chassis. Outfitted with high-strength 3/4" chromoly spherical rod ends featuring self-lubricating Teflon/Kevlar races, these arms allow full, bind-free suspension articulation while completely eliminating deflection. Finished in a durable bright red powder coat for superior protection and bold underbody style.
Features
- Ships pre-set at +5/8" extended length to properly center rear axle assembly in the wheel openings
- Designed specifically to pair with extended length lower rear control arms (P/N 3612 or 3614)
- On-car double-adjustable design allows an additional +/- 1/2" length adjustment and precise pinion angle setting
- 3/4" high-strength chromoly spherical rod ends with self-lubricating Teflon/Kevlar races eliminate suspension bind
- Built from heavy-duty DOM steel tubing with 0.250" CNC-machined steel mounting brackets
- 1.000" solid 4140 chromoly heat-treated turnbuckle adjuster and 4140 chromoly threaded tube adapters
- Teflon-lined rod ends prevent metal-to-metal contact to minimize unwanted noise, vibration, and harshness (NVH)
- Durable bright red powder coat finish for superior corrosion resistance and eye-catching styling
- 100% designed, tested, and manufactured in the USA
Specifications
- SKU: 3619-R
- Manufacturer: UMI Performance
- Country of Origin: USA
- Tubing Material: Heavy-Duty DOM Steel Tubing
- Mounting Brackets: 0.250" CNC-Machined Mild Steel
- Adjuster & Adapters: Heat-Treated 4140 Chromoly Steel (1.000" Solid Adjuster)
- Rod Ends: 3/4" Chromoly Spherical Bearing Rod Ends (Teflon/Kevlar Lined)
- Baseline Extension: +5/8" extended length over OEM
- Additional Adjustment: +/- 1/2" on-car adjustment range
- Finish: Bright Red Powder Coat
- Product Weight: 9.0 lbs
- Dimensions: 14" x 6" x 6"
- Unit of Measure: Pair (Driver & Passenger Side)
- Hardware: Reuses OEM Frame Bolts (or optional aftermarket kit)
Fitment Notes
- Position: Rear Upper Control Arms (Pair).
- Fits 1978-1996 GM B-Body platforms (Chevrolet Impala SS, Caprice, Buick Roadmaster, LeSabre, Pontiac Bonneville, Catalina).
- Designed specifically for use with extended length lower control arms.
- Driveshaft Note: Depending on ride height and axle positioning, extended control arms may require a custom longer driveshaft to maintain correct slip-yoke engagement.
- Direct bolt-in upgrade; reuses factory frame hardware or upgraded Grade 10.9 bolts.
Fitment
1991 Buick Roadmaster
1992 Buick Roadmaster
1993 Buick Roadmaster
1994 Buick Roadmaster
1995 Buick Roadmaster
1996 Buick Roadmaster
1978 Buick LeSabre
1979 Buick LeSabre
1980 Buick LeSabre
1981 Buick LeSabre
1982 Buick LeSabre
1983 Buick LeSabre
1984 Buick LeSabre
1985 Buick LeSabre
1978 Chevrolet Caprice
1979 Chevrolet Caprice
1980 Chevrolet Caprice
1981 Chevrolet Caprice
1982 Chevrolet Caprice
1983 Chevrolet Caprice
1984 Chevrolet Caprice
1985 Chevrolet Caprice
1986 Chevrolet Caprice
1987 Chevrolet Caprice
1988 Chevrolet Caprice
1989 Chevrolet Caprice
1990 Chevrolet Caprice
1991 Chevrolet Caprice
1992 Chevrolet Caprice
1993 Chevrolet Caprice
1994 Chevrolet Caprice
1995 Chevrolet Caprice
1996 Chevrolet Caprice
1994 Chevrolet Impala SS
1995 Chevrolet Impala SS
1996 Chevrolet Impala SS
1977 Pontiac Bonneville
1978 Pontiac Bonneville
1979 Pontiac Bonneville
1980 Pontiac Bonneville
1981 Pontiac Bonneville
1977 Pontiac Catalina
1978 Pontiac Catalina
1979 Pontiac Catalina
1980 Pontiac Catalina
1981 Pontiac Catalina
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
