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Double Black Offroad

JT Dana Spicer 44 Ring & Pinion Set 5.13 Ratio Nitro Gear


Nitro Ring & Pinions are among the best in the industry. By using better materials, machining, heat treating and lapping process, Nitro can ensure a strong, quiet running, long lasting setup. Every new application is put through multi point inspections and actually installed and set up by Nitro's in-house differential experts to ensure excellent fitment and easy setup. At Nitro we see strive to meet consumer demand for new ratios and applications, and we are continually developing new products to stay ahead of the competition.

Product Details & Specs
  • Precision machining & heat treating processes ensure strength and excellent fitment.
  • CNC gear lapping ensures ease of installation, excellent contact patterns and a quiet running setup.
  • Rapidly growing application range to meet new demands
  • Street or stip, track or trail - you can depend on Nitro.

Differential: Dana Spicer 44 Standard Rotation
Ratio:  5.13
Carrier: 3.91 & up case
Tooth Count: 41-8
Manufacturer:  Nitro Gear
Warranty: 2 years
Pinion Spline Count:  26
Ring Gear Bolt Count:   10 (not included)

Vehicle Applications:
1948-1979 Ford F100 F150 Rearend
1967-1976 Ford F150 4x4 Front Differential
1967-1977 Ford F250 4x4 Front Differential
1972-1977 Ford Bronco
1970-1986 Jeep J10 J20 Pickup
1974-1985 Jeep Wagoneer
1975-1985 Jeep Cherokee FSJ
1986-1992 Jeep Grand Wagoneer

Shipping & Returns
When shipping denotes a $0 value, team will email you a freight quote, it does NOT mean freight is $0. You will receive a freight estimate ASAP which you can choose to accept (complete the purchase), or deny, (abandon purchase). Shipping will be calculated at checkout using the best available freight based on your location. Some large items and or oversized items can be purchased and the Double Black team will email you within 24 hours with a seperate freight invoice.
Downloads & Manuals