GM 14 Bolt 9.5 & 10.5 Axle Parts ~ RWK Haus Supply

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14 Bolt 9.5" & 10.5" GM Truck

There are two 14 Bolt housings. The 9.5" semi-floater, & the larger 10.5" full-floater.

Be sure to Order the correct items for what housing you have.

9.5" 14 Bolt:


Model	Year	Model	Year
C10, C15, C20	88-96	K30-K35	89-96
C30, C35	83-96	3/4 - 1 ton	81-92
K10, K15	88-96	3/4 - 1 ton Front IFS	88-96
K20, K25	81-96

12-1/8"
14 HOLES
Oval Irregular Gasket Pattern

RG Diameter 9.5"
12 12mm X 1.5" LH Threaded Bolts
PINION Diameter 1.876", 30 Spline
Semi Floating
CASE: no case breaks

8620 Material Heat-Treated

Assembly Specifications:
Cover Bolt Ft. Lbs. 20
Pinion Brg. Preload In. Lbs 20-25
Pinion Brg. Preload In. Lbs 10-15 Used
Ring Gear Backlash .005-.009
Ring Gear Bolt to case Ft. Lbs. 105
Side Brg. Caps Ft. Lbs. 60

10.5" 14 Bolt


Model	Year	Model	Year
3/4 Ton 1 Ton	73-92	K20, K25	73-96
G30, G35	73-96	K30, K35	73-96
C20, C25	73-96
C30, C35	73-96

The Larger and arguably the strongest production Axle.

14-7/8 x 13"
14 HOLES
Irregular Gasket Pattern

RG Diameter 10.5"
12 9/16 X 18" RH Threaded Bolts
PINION Diameter 1.75", 30 Spline
CASE: 4.10 & Numerically Lower, 4.56 & Numerically Higher

8620 Material Heat-Treated

Assembly Specifications:
Cover Bolt Ft. Lbs. 20
Pinion Bearing Preload In. Lbs 20-25
Pinion Bearing Preload In. Lbs 10-15 Used
Ring Gear Backlash .005-.009
Ring Gear Bolt to case Ft. Lbs. 105
Side Bearing Caps Ft. Lbs. 100