POSI PERFORMANCE DIFFERENTIAL - The patented carbon-carbon fabric clutch maintains its lubricity to provide smooth, quiet operation. - GM 3-Series Truck: 1961-1980 - 8.875 inch ring gear - 12 bolts - 2.76 to 3.42 - 30 SPLINE We ship from several national distribution centers through UPS and LTL truck services. Most orders will ship out on the same day as ordered (by 3pm Central Time - except weekends and holidays).
Orders are delivered in 5 business days or less, with most delivered in 1-2 business days (ground service time estimates are not guaranteed). Time sensitive and guaranteed expedited shipping options, when available, are easily displayed in your shopping cart after you enter parts and destination zip code.
