Availability
USA Standard Gear uses precision machining and vigorous testing methods to produce a large assortment of world-class gearing and axle products, ranging from axle shafts...
USA Standard Gear uses precision machining and vigorous testing methods to produce a large assortment of world-class gearing and axle products, ranging from axle shafts to lockers. Summit Racing is your go-to source for USA Standard Gear parts. We carry USA Standard Spartan lockers, ring and pinion sets, axle shafts, replacement cross pins, front axle stubs, and more. Get the traction you need from the parts you want. Order your USA Standard Gear parts from Summit Racing today!
USA Standard Gear uses precision machining and vigorous testing methods to produce a large assortment of world-class gearing and axle products, ranging from axle shafts to lockers. Summit Racing is your go-to source for USA Standard Gear parts. We carry USA Standard Spartan lockers, ring and pinion sets, axle shafts, replacement cross pins, front axle stubs, and more. Get the traction you need from the parts you want. Order your USA Standard Gear parts from Summit Racing today!
Showing In Stock Items. Show All 57 Items.
Differential Carrier, Spartan Helical Gear Limited Slip, Dana 30, Front, 27 Spline, 3.73 and Up Ratio, Each
Part Number: SPZ-10383
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 4.11:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set
Part Number: SPZ-36041
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.73:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 30, Set
Part Number: SPZ-36024
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Ring and Pinion Gears, 3.54:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set
Part Number: SPZ-36073
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set
Part Number: SPZ-36045
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.73:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set
Part Number: SPZ-36074
Not Yet Reviewed
Estimated Ship Date: Feb 5, 2026 if ordered today
Estimated Ship Date: Feb 5, 2026 if ordered today
Ring and Pinion Gears, 5.38:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set
Part Number: SPZ-36053
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 44, Set
Part Number: SPZ-36044
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Ring and Pinion Gears, 5.13:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set
Part Number: SPZ-36078
Not Yet Reviewed
Estimated Ship Date: Feb 3, 2026 if ordered today
Estimated Ship Date: Feb 3, 2026 if ordered today
USA Standard Ring & Pinion "thick" gear set for Dana 44 in a 5.13 ratio
Part Number: SPZ-36051
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.54:1 Ratio, 10-bolt, 26-spline, Standard Gear Rotation, Dana 44, Set
Part Number: SPZ-36039
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
USA Standard ring & pinion sets are the right choice to add confidence to your install. USA Standard Gear offe
Part Number: SPZ-36315
Not Yet Reviewed
Estimated Ship Date: Feb 3, 2026 if ordered today
Estimated Ship Date: Feb 3, 2026 if ordered today
USA Standard Ring & Pinion gear set for Dana 44 in a 5.13 ratio
Part Number: SPZ-36050
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Ring and Pinion Gears, Dana 44, 3.08:1 Ratio, 26-spline, Standard Rotation, Dana 44, Chevrolet, Dodge, Ford, GMC, International, Isuzu, Jeep, Set
Part Number: SPZ-36038
Not Yet Reviewed
Estimated Ship Date: Jan 30, 2026 if ordered today
Estimated Ship Date: Jan 30, 2026 if ordered today
Ring and Pinion Gears, 4.56:1 Ratio, 26-spline, Standard Ring Gear Rotation, Dana 30, Set
Part Number: SPZ-36026
Not Yet Reviewed
Estimated Ship Date: Jan 30, 2026 if ordered today
Estimated Ship Date: Jan 30, 2026 if ordered today
32.91" 30spl INNER LH AXLE D44 SCOUT 71-80
Part Number: SPZ-35114
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Ring and Pinion Gears, 4.88:1 Ratio, 10-bolt, 26-spline, Standard Gear Rotation, Dana 44, Set
Part Number: SPZ-36047
Not Yet Reviewed
Estimated Ship Date: Feb 3, 2026 if ordered today
Estimated Ship Date: Feb 3, 2026 if ordered today
Ring and Pinion Gears, 4.11:1 Ratio, 10-bolt, 26-spline, Standard Gear Rotation, Dana 44, Set
Part Number: SPZ-36042
Estimated Ship Date: Feb 3, 2026 if ordered today
Estimated Ship Date: Feb 3, 2026 if ordered today
USA Standard Ring & Pinion gear set for Dana 44 in a 5.89 ratio
Part Number: SPZ-36054
Not Yet Reviewed
Estimated Ship Date: Feb 5, 2026 if ordered today
Estimated Ship Date: Feb 5, 2026 if ordered today
Ring and Pinion Gears, 4.11:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set
Part Number: SPZ-36075
Not Yet Reviewed
Estimated Ship Date: Feb 5, 2026 if ordered today
Estimated Ship Date: Feb 5, 2026 if ordered today
27.01" 27spl INNER LH AXLE 72-81 CJ JEEP D30
Part Number: SPZ-35165
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
4340 Chromoly axle, Scout & Wagoneer D44, RH Inner, uses 5-760X u/joint
Part Number: SPZ-35071
Not Yet Reviewed
Estimated Ship Date: Feb 5, 2026 if ordered today
Estimated Ship Date: Feb 5, 2026 if ordered today
USA Standard Ring & Pinion gear set for Model 35 in a 5.13 ratio.
Part Number: SPZ-36301
Not Yet Reviewed
Estimated Ship Date: Feb 6, 2026 if ordered today
Estimated Ship Date: Feb 6, 2026 if ordered today
Ring and Pinion Gears, 4.88:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 60, Set
Part Number: SPZ-36077
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Spartan Differential Locker, Dana 35, 27-spline Axle, Jeep, 1.625 in. Carrier, Each
Part Number: SPZ-17008
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
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