12 Bolt Assemblies

In sheer numbers alone, the Chevrolet 12 bolt rear end is the most popular in racing. With the proper components and modifications, the 12 bolt can be strengthened to the point where it is adequate for most moderately powered full-bodied racecars. Using MW's 35-spline axle/spool package and the addition of the DTS Express (KTRE) housing will extend the life cycle of the 12 bolt. These housings feature improvements over the original GM housings that include ductile iron castings, 4130 tubes, 3.062" or 3.250" main bore caps with 1/2" bolts, and jig fitted suspension brackets. Three basic units are available; configureations include street / strip with Eaton™ posi-traction units, standard drag race with 35-spline steel spool and lightweight 35-spline aluminum spool. Bolt-in models are available for all popular GM cars including the F-body with torque arm mounts.

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Complete Pro Quality GM 12 Bolt Assembly

$4,093.00

Complete Pro Quality GM 12 Bolt Assembly

Product Code: 58000-R

Pro Quality GM 12 Bolt rearend assembly

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Complete Pro Quality Light Weight 12 Bolt Assembly

$4,440.00

Complete Pro Quality Light Weight 12 Bolt Assembly

Product Code: 58000-RL

Pro Quality lightweight GM 12 Bolt rearend assembly (less brakes)

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Complete Street/Strip GM 12 Bolt  Assembly

$3,717.00

Complete Street/Strip GM 12 Bolt Assembly

Product Code: 58060-S

Masterline street / strip GM 12 Bolt rearend assembly (less brakes)

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Modular 12 Bolt Steel Tube 4 Link Rear End Assembly

$7,034.00

Modular 12 Bolt Steel Tube 4 Link Rear End Assembly

Product Code: 97412

Complete with axles, steel spool, pro gears, 1350 series pinion yoke, choice of housing ends, steel end bells, 4-Link brackets, and rectangular tie bar, MW disc brakes with steel drilled rotors, and drive stud kit

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Modular 12 Bolt Steel Tube Rear End Assembly

$5,360.00

Modular 12 Bolt Steel Tube Rear End Assembly

Product Code: 95412

Includes choice of housing ends, steel end bells, steel tubes, 30-spline MasterLine axles, bearings, Eaton posi, spool, 8620 street gears and 1350 yoke.

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Modular 12 Bolt Steel Tube Street Rear End Assy.

$5,247.00

Modular 12 Bolt Steel Tube Street Rear End Assy.

Product Code: 95012

Complete 12 Bolt Modular assembly. Includes choice of housing ends, aluminum end bells, steel tubes, 30 Spline MasterLine axles, 1/2"-20 wheel studs, wheel bearings, spool, Eaton Posi, standard gears and 1350 yoke.

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