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1979-93 Mustang UPR K-Member & Coil Over Kit w/ 14" 175 lb Springs For 4.6L by UPR

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  • UPR Mustang K-Member & Coil Over Kit w/ 14" 175 lb Springs For 4.6L (79-93) 2005-79-MOD  14"  175LB
UPR Mustang K-Member & Coil Over Kit w/ 14" 175 lb Springs For 4.6L (79-93) 2005-79-MOD  14"  175LB

Overhaul your 1979-1993 4.6 powered Mustang's suspension with the addition of this K-member and coil over kit from UPR!

Item #UPR-2005-93FK
MPN# 2005-79-MOD 14" 175LB

Everyday Low Price: $839.99

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  • Save Weight
  • Adjustable Ride Height
  • Better Handling
  • Increased Chassis Rigidity
  • Made In The USA!


  • For 4.6 Based Engines
  • 4130 Chrome Moly Tubing
  • Tig Welded Billet Fixtures
  • Silver Powder Coated Finish
  • Fox Style Ball Joints
  • 14" 175 lb coil over springs by Viking

What's in the Box

  • (1) UPR Tubular K-Member
  • (2) UPR Tubular Front Control Arms
  • (1) UPR Coil Over Kit

UPR Brand Image

Product Description

K-Member & Coil Over Kit
This UPR K-Member and Coil-Over Kit for your 1979-1993 Mustang with a 4.6 based engine and includes 14" 175lb coil over springs by Viking. This spring rate is the perfect compromise between drag performance & street manners on full weight cars. We recommend this kit for drag race and mild street applications.

UPR Quality
UPR's Chrome-moly K-member kit will save more weight and exceed any strength limitations of mild steel while allowing maximum header and oil pan clearance. This kit was designed for the abuse of drag race and Street Enthusiasts, most importantly it will handle the everyday wear and tear of city & highway streets like that was its main intent. Coil over kit with exclusive design adjuster nut includes new set screw design to ensure it never looses it's setting! They require no tools to adjust and Eibach springs for unmatchable ride quality. When you see this kit in person you will be astonished by the quality of the components and welds, better than OEM. All while still retaining all factory wheel and engine locations.

Product Notes
  • Requires shorter steering rack bolts that can be found HERE
  • Heavy duty control arm hardware is recommended and can be found HERE
  • Clunks, squeaks, and pops can be normal occurrences with coilover setups.

    Wheel Clearance
  • Mustangs running 9" or wider wheels may require a wheel spacer to provide clearance for coilover.
  • 14" spring setups are typically used for drag racing. The extra length of the spring may cause interference with street rim and tire setups. Please check wheel and tire clearance!

  • 1979-1993 Mustangs w/ 4.6 Based Swaps

    Bushing Lubrication
    The suspension bushings included with this part can only be lubricated with PTFE grease, also referred to as "Marine Grease". PTFE grease is a very sticky, opaque grease that is water proof and will not degrade the bushing material. If lubed properly at installation, these bushings will not need to be lubricated again. Use of any other grease on these bushings will cause the bushing to fail and any bushing warranty to be voided.

    Engine Mount Fitment Note
    - Stock and aftermarket engine mounts can have alignment pins that can cause fitment issues. Removal of the alignment pin might be necessary for correct mating of engine mount to k-member.

    UPR Warranty - Click Here

  • Fitment Notes

  • The coil overs included are designed to fit the following: Koni Yellow adjustable, Strange 10-way adjustable, & Lakewood adjustable.
  • We recommend a bumpsteer kit with this product.
  • Caster Camber plates are required for this product to fit correctly.
  • Requires shorter steering rack bolts
  • Aftermarket control arms can vary in length from stock control arms and may be one to two inches shorter. This will not affect the geometry of the suspension as the length variation has been accounted for.

  • California Residents:
    Prop 65 Warning SignWARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov

    Product Videos

    How To Remove Fox Body Mustang K-Member (1979-1993)

    Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

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    Vehicle Applications

    Ford Mustang - 1979 (79) - 1980 (80) - 1981 (81) - 1982 (82) - 1983 (83) - 1984 (84) - 1985 (85) - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)

    About This Brand

    In 1989, Mark Mainiero and his son Joe started UPR Products with Mustangs in mind. With the help of their employees Jeremy Martorella and Bart Tobener, they brought in more racing victories and records than any other shop of that time. In 1998, Joe recognized the need for a company that fully understood the Mustang racer's suspension needs. While making customer service his main priority, he strived to offer the strongest, lightest, and highest quality parts at an affordable price. A firm believer in the “keep it simple” philosophy Joe made sure all his components could be easily installed and adjusted. Shop UPR for high quality Mustang performance and dress up components.

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