"Sportsman Series"
C6 Manual Corvette IRS Street/Track Differential

We offer these Sportsman Series rear differential upgrade packages for those that want neck-snapping acceleration that only a performance gear change can deliver! Our "Sportsman Series" lines of Corvette IRS Differentials are built for the Corvette enthusiast who wishes to have a professionally prepared, high performance street/track differential for their C6 automatic Corvette.

Unlike O.E. GM differentials that are limited to stock gear ratios and slapped together on a production line where assembly speed is more important than build quality... Each DTE Sportsman Series Corvette IRS Street/Track Differential is available in a wide selection of gear ratios to suit your specific application and each unit is entirely prepared, hand assembled, and blueprinted right here in the USA! Our in-house production capability enables us to maintain a very tight quality control process. That process guarantees outstanding build quality every time.

Application:

• 2006-2009 C6 Manual Corvette
• Manual Transmission
• Stage 3: High performance street and moderate track use
• Stage 4: Ultra high performance street and track applications

Stage 3 "Sportsman Series" Street/Track Differential

• Disassembly to bare case for component inspection
• Power steam cleaning, hand washing, & bead blasting of all differential components to a like-new finish
• Machining of specific components for improved fitment & functionality over stock
• Proprietary oiling improvements
  • Extends bearing & clutch pack life through cooler operation
• A choice of 3.42, 3.73, 3.90, & 4.10 ratios additionally prepared for performance applications
• Cryogenically treated ring & pinion set
  • Increases gear set longevity, wear resistance, & promotes quiet operation
• DTE's own design/manufactured m4340-300m left hardened output shaft
  • Replaces weaker OEM shaft that breaks in HP applications & is of superior strength to C6-Z06 shaft
• DTE's own design/manufactured m4340-300m right hardened output shaft
  • Replaces weaker OEM shaft that breaks in HP applications & is of superior strength to C6-Z06 shaft
• New GM seals, O-rings, & gaskets
• New Timken bearings & races
• New HD 16-disc carbon clutch packs
  • Increased torque bias; withstands higher heat & torsional stress loads; longer lasting; won't contaminate differential oil as they wear
• Heavy duty cone springs
• Two, 1-quart bottles of 75w/140 synthetic gear lubricant included
• DTE Billet support
• Differential exterior prepped for a factory appearance, color, & corrosion protection
• Professional in-house machining, assembly, & blueprinting
• Written 2 year or 24K mile warranty*

Differential exchange or build your supplied core: $2595
In-house installation for manual transmission cars: $3045

Options:

• Shot peen & micro polishing of ring & pinion set: $260
• DTE Differential Strut Kit: FREE shipping when purchased with a differential: $349
• DTE Differential Strut Kit: In-house installation while upgrading rear differential: $250

Stage 4 "Sportsman Series" Street/Track Differential

• Disassembly to bare case for component inspection
• Power steam cleaning, hand washing, & bead blasting of all differential components to a like-new finish
• Machining of specific components for improved fitment & functionality over stock
• Proprietary oiling improvements
  • Extends bearing & clutch pack life through cooler operation
• A choice of 3.42, 3.73, 3.90, & 4.10 ratios additionally prepared for performance applications
• Micro polishing of ring & pinion set
  • Reduces operational heat/parasitic drag
• Shot peened ring & pinion set
  • Greatly increases gear set impact load capacity to withstand racing applications
• Cryogenically treated ring & pinion set
  • Increases gear set longevity, wear resistance, & promotes quiet operation
• Quaife carrier unit
  • Replaces OEM clutch pack carrier unit w/automatic torque biasing, helical gear limited slip differential
• DTE's own design/manufactured m4340-300m left hardened output shaft
  • Replaces weaker OEM shaft that breaks in HP applications & is of superior strength to C6-Z06 shaft
• DTE's own design/manufactured m4340-300m right hardened output shaft
  • Replace weaker OEM shaft that breaks in HP applications & is of superior strength to C6-Z06 shaft
• DTE's own design/manufactured billet aluminum HD pinion shaft support
  • Replaces weaker, crack prone OEM cast aluminum parts to prevent pinion shaft deflection & is of superior strength to the cast aluminum C6-Z06 support
• New GM seals, O-rings, & gaskets
• New Timken bearings & races
• Two, 1-quart bottles of 75w/140 synthetic gear lubricant included
• Differential exterior prepped for a factory appearance, color, & corrosion protection
• Professional in-house machining, assembly, & blueprinting
• Written 2 year or 24K mile warranty*

Differential exchange or build your supplied core: $3995
In-house installation for manual transmission cars: $4445

Options:

• 30-spline pinion shaft drive to fit HD C6-Z06 transmission output shaft: $295
• DTE's own design/manufactured billet aluminum HD right side cover: $PLEASE CALL
  • Replaces weaker OEM cast aluminum cover that can break under a hard launch
• DTE Differential Strut Kit: FREE shipping when purchased with a differential: $349
• DTE Differential Strut Kit: In-house installation while upgrading rear differential: $250

Differential Shipping: FedEx fully insured ground shipping to lower 48 states: $115

Differential Core Charge: $1800

• 100% refundable when good, undamaged core is returned within 15 days of differential delivery
• Any good, complete, unbroken, & assembled M6-manual differential core in working order may be used for trade-in.

*Whichever comes first. Warranty excludes racing application use, failure due to abusive wheel hop, low oil level, infrequent lube change intervals, differential selected that is under-rated for application, etc. See provided policies/warranties for complete details.