UMI Performance

UMI Performance 78-88 GM G-Body C5/C6 Front Brake Conversion Hubs Bearings Bracket Kit

SKU 304647

MPN umi304647

$579.99 · Available to order

UMI Performance 78-88 GM G-Body C5/C6 Front Brake Conversion Hubs Bearings Bracket Kit

UMI’s C5/C6 conversion kit includes laser cut UMI conversion brackets, light weight USA made aluminum hubs and premium bearings. P/N 304647 includes everything needed to adapt the C5/C6 abutment brackets, calipers and rotors to the G-Body spindles.  The hub features 5 x 4-1/2 and 5 x 4-3/4 bolt patterns and is intended to face mount the C5/C6 brake rotor in exact factory location (front track width is unaffected). The kit includes premium bearing cups and cones along with the correct rawhide seal for great performance and reliability. The 304647 kit is the choice for UMI’s Green Machine and has been thoroughly tested to withstand road race and auto-x competition. 100% manufactured in USA as well as tested and raced out of Philipsburg, PA – USA. Kit includes: UMI conversion brackets, driver and passenger side aluminum hubs, correct bearings and seals to mount the C5/C6 calipers and abutment brackets. Wheel studs are not included, 1/2-20 threaded studs will be required to complete installation. Determine stud length after choosing wheel and considering offset, whether or not spacers are required, and after determining wheel flange thickness. Kit requires C5 or C6 calipers, rotors, brake pads and brake lines. A detailed list of GM part numbers is included. Requirements: C5 brakes require a minimum of a 17” wheel for clearance while C6 requires an 18”wheel. Please research wheel fitment before purchasing.

Confirmed vehicle fitment
YearsMakeModelSubmodelDrive
1978–1983ChevroletMalibuClassic
1988OldsmobileCutlass CieraBase
1978–1987OldsmobileCutlass SupremeBrougham
1978–1982BuickRegalSport
1981–1988ChevroletMonte CarloBase
1988OldsmobileCutlass SupremeSL
1983–1990ChevroletS10 BlazerSport
1990–1994ChevroletS10 BlazerTahoe
1982–1988OldsmobileCutlass CieraBrougham
1982BuickRegalLimited Turbo
1991GMCS15 JimmySLT
1991GMCS15 JimmySLS
1984–1987PontiacGrand PrixLE
1981GMCCaballeroRoyal Knight
1978–1987ChevroletEl CaminoSS
1991–1994ChevroletS10 BlazerTahoe LT
1982–1986PontiacBonnevilleBrougham
1983–1991GMCS15 JimmyBase
1999–2003ChevroletS10Xtreme
1978–1987BuickRegalLimited
1988OldsmobileCutlass CieraInternational
1979–1980ChevroletMalibuEstate
1983–1986BuickRegalT-Type
1978–1980ChevroletMalibuClassic Estate
1993–2003GMCSonomaSLS
1978–1987PontiacGrand PrixBase
1986–1988OldsmobileCutlass CieraS
1982–1990GMCS15Sierra Classic
1978–1987GMCCaballeroBase
1994–2003GMCSonomaSL
1978–1980GMCCaballeroLaredo
1994ChevroletS10 BlazerLT
1978–1988OldsmobileCutlass SupremeBase
1988OldsmobileCutlass SupremeIndy 500 Pace Car
1983–1984OldsmobileCutlass CalaisHurst
1991–2001GMCSonomaSLE
1978–1979OldsmobileCutlass Salon442
1983GMCS15Gypsy
1982–1990ChevroletS10Durango
1978–1981ChevroletMonte CarloLandau
1978ChevroletMonte CarloSport
1981–1986GMCCaballeroAmarillo
1991GMCS15 JimmySLE
1982–1989ChevroletS10Sport
1986–1988GMCS15Gypsy
1982–1986PontiacBonnevilleBase
1985–1986OldsmobileCutlass CieraHoliday
1985–1986OldsmobileCutlass Salon442
1978–1980OldsmobileCutlass SalonBrougham
1983–1988ChevroletS10 BlazerTahoe
1980–1983OldsmobileCutlass CruiserBase
1992GMCSonomaGT
1985–1986OldsmobileCutlass CieraES
1985GMCS15 JimmyHigh Sierra
1984–1986PontiacBonnevilleLE
1980–1981OldsmobileCutlass CruiserBrougham
1988OldsmobileCutlass SupremeClassic
2002–2003ChevroletS10ZR5
1979ChevroletMalibuPolice
1978–1981ChevroletMalibuClassic Landau
1983–1994ChevroletS10 BlazerBase
1978–1979OldsmobileCutlassVista Cruiser
1978–1983PontiacGrand PrixLJ
1988OldsmobileCutlass SupremeClassic Brougham
1987GMCS15EL
1983–1990GMCS15 JimmySierra Classic
1982GMCS15Sierra Grande
1988–1989GMCS15 JimmyTimberline
1978–1981ChevroletMalibuBase
1980–1981OldsmobileCutlassBrougham
1994–2003ChevroletS10ZR2
1978–1980PontiacGrand PrixSJ
1994–1998ChevroletS10SS
1985–1987OldsmobileCutlass SalonBase
1979ChevroletMonte CarloBase
1979–1981ChevroletEl CaminoRoyal Knight
1981–1986ChevroletEl CaminoConquista
1983OldsmobileCutlass CieraES
1980–1981OldsmobileCutlassLS
1991–1993GMCSonomaBase
1979ChevroletMalibuLandau
1985OldsmobileCutlass SupremeLS
1978–1987GMCCaballeroDiablo
1988OldsmobileCutlass SupremeInternational
1978–1987BuickRegalBase
1987–1989ChevroletS10 BlazerHigh Country
1982–1990GMCS15Base
1982–1992ChevroletS10Tahoe
1983ChevroletMonte CarloCL
1994–2003ChevroletS10LS
1984–1987BuickRegalGrand National
1979OldsmobileCutlass SalonHurst
1987OldsmobileCutlass Supreme442
1992ChevroletS10 BlazerSport
1983–1988ChevroletMonte CarloSS
1986–1988OldsmobileCutlass CieraSL
1991ChevroletS10Baja
1978–1980OldsmobileCutlass SalonBase
1979OldsmobileCutlassVista Cruiser Brougham
1984–1985OldsmobileCutlass CieraCruiser LS
1982–2003ChevroletS10Base
1987BuickRegalGNX
1979–1980ChevroletMalibuSport
1978–1987ChevroletEl CaminoBase
1982–1983BuickRegalEstate Wagon
1978ChevroletEl CaminoConquista
1978–1984OldsmobileCutlass CalaisBase
1982–1988OldsmobileCutlass CieraLS
1981GMCCaballeroConquista
1979–1980ChevroletMalibuClassic Sport
1986–1988ChevroletMonte CarloLS
1982–1983OldsmobileCutlass CieraBase
1980OldsmobileCutlassBase
1981OldsmobileCutlass SupremeLS
1982–1990GMCS15High Sierra
1980ChevroletMonte CarloSport
1985–1987OldsmobileCutlass CieraGT
1992–1993ChevroletS10EL
1983–1990GMCS15 JimmyGypsy
1981–1987PontiacGrand PrixBrougham
Specifications
CategoryDrivetrain
Sub-CategoryWheel Bearings
UPC304647
CARB ApprovedYes
Prop 65 WarningY
Special OrderYes
Weight8 lb
Dimensions (L×W×H)12 × 10 × 8 in