DSM AWD Rear Differential Rebuild Services

Click Here to Request a Quote for your EVO 4-9

Before & After of the same rear diff.  Expect the best from TRE.

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89-99 DSM Rear Differential Rebuild Service  $525.

Includes the following services and parts:

  • The rear diff is disassembled and hot tanked to remove all dirt, grease and oil.
  • Parts are then glass beaded and then inspected for wear and components are magnafluxed checked for cracks.
  • Cast iron housing is glass beaded and epoxy painted.
  • Pinion flange glass beaded, painted and then turned true to rule out any vibration from a damaged pinion flange.
  • New Upper and Lower Pinion Gear Tapered Roller Bearings
  • New Carrier Housing Right and Left Tapered Roller Bearings
  • New Shims for Bearing Preload Setup, Pinion Height / Gear Backlash Setup, and Proper Gear Contact Pattern
  • New Pinion Flange Seal
  • New Rear Axle Seals
  • New Fasteners
  • New Fill Plug and Washer
  • New Magnetic Drain Plug and Washer

Additional Upgrades & Parts:

  • JDM EVO Mechanical Type Rear Differential $375. (requires upgraded axles)
  • TRE Oil Sight Rear Cover $115. (available for 89-94 DSM and EVO-4/9)

DSM Race Prepped Rear Diff Rebuild Service  $1500.

Strong enough for low 8’s.

Includes the following services and parts:

  • The rear diff is disassembled and hot tanked to remove all dirt, grease and oil.
  • Parts are then glass beaded and then inspected for wear and components are magnafluxed checked for cracks.
  • Cast iron housing is glass beaded and epoxy painted.
  • Pinion flange glass beaded, painted and then turned true to rule out any vibration from a damaged pinion flange.
  • New Upper and Lower Pinion Gear Tapered Roller Bearings
  • New Carrier Housing Right and Left Tapered Roller Bearings
  • New Shims for Bearing Preload Setup, Pinion Height / Gear Backlash Setup, and Proper Gear Contact Pattern
  • New Pinion Flange Seal
  • New Rear Axle Seals
  • New Fasteners
  • New Fill Plug and Washer
  • New Magnetic Drain Plug and Washer

Plus these following upgrades:

  • JDM EVO Mechanical Type Rear Differential. (requires upgraded axles)
  • TRE Heavy Duty Side Cover. 3x the rigidity over the OEM side cover. Eliminates deflection of the ring gear during hard clutch dumps. Large crush-proof bearing post design.
  • TRE 12 plate MAX-LOCK friction disc upgrade, these are most aggressive and durable friction discs available.
  • CNC machining of the Cross Shaft and Side Sheave  eliminates the “clunk” from the rear diff.
  • CNC machining of the Rear Diff Basket large radius of the housing. Improves the strength against cracking.
  • Gear Detail & Tooth Profile Modification of the Ring & Pinion gearset. Proven to increase the durability of the gear teeth.
  • Shot Peening of the Ring & Pinion, Spider Gearset, Cross Shaft, Side Sheaves, Rear Diff Basket. We make them stronger.

Additional Upgrades & Parts:

  • TRE Heavy Duty Rear Diff Basket $425. (available for mechanical type rear diff)
  • TRE Oil Sight Rear Cover $115.  Allows visual indication of oil quality while increasing oil capacity by 50%. (89-94 years only)

Turn-around times for the rear diff service is about a week.

Inbound Shipping and Insurance, in the lower 48 States, ranges from $45 – 75.

Outbound Shipping and Insurance, in the lower 48 States, ranges from $45 – $75.

If you don’t have a core to send in for this service, the core charge is $900.

Click Here to Request a Quote for your EVO 4-9