GEAR SET,9" FORD,POSI TRAC-LOC,28 SPLINE,3.33 Blocks Custom tune the spring rate

Custom tune the spring rate and add 2 inch of ride height to your Ford F-250 or F-350 Super Duty 4WD Diesel by swapping coil springs

BRAND NEW HOLLEY SUPER SNIPER EFI SELF-TUNING MASTER KIT - GOLD FINISH - 4 BARREL FUEL INJECTION CONVERSION - HANDHELD EFI MONITOR (PART #550-520K)

TIP FINISH: POLISHED/BLACK

PREDATOR ALSO LETS YOU ADJUST COOLING FAN SPEEDS

AND BRAKE LINE KIT FOR THE APPLICATIONS BELOW (PART #UHR54INX-K5)

GEAR SET,9" FORD,POSI TRAC-LOC,28 SPLINE,3.33 Blocks Custom tune the spring rateCOMPLETE CENTER SECTION WITH A 3. 33 GEAR SOLD COMPLETELY ASSEMBLED WITH: *NEW 28 SPLINE TRAC LOC POSI UNIT *NEW RING & PINION *NEW TIMKEN BEARINGS *NEW PINION YOKE *NEW SOLID SHIM SET *3RD MEMBER GASKET *INSTRUCTIONS DETAILING PROPER BREAK IN PROCEDURE POSI UNIT IS A 4 PIN LIMITED SLIP TRAC LOC (SHOWN BELOW); IT IS A CLUTCH STYLE POSI UNIT; USING THIS PRODUCT DOES REQUIRE FRICTION MODIFIER IN THE GEAR LUBE PROFESSIONALLY SET UP WITH PROPER LASH