"Sportsman Series"
C5 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 that 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:
- 1997-2004 C5 Corvette
- Automatic or 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
- DTE's own design/manufactured m4340-300m 3-piece right hardened output shaft kit w/shaft, side gear, & snap ring
- Replaces weaker OEM 1-piece shaft design 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
- 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
- Replaces weaker OEM springs that crack in HP applications
- 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 using 2002-2004 3-rib differential cores w/HD OEM cases & side covers
- Written 2 years or 24K mile warranty*
Differential exchange or build your supplied core: $2995
In-house installation for manual transmission cars: $3445
In-house installation for automatic transmission cars & includes PCM shift-point calibration: $3520
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 increase gear set impact load capacity to withstand racing applications
- Cryogenically treated ring & pinion set
- Increases get 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
- Replaces weaker OEM 1-piece shaft design 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 is prepped to a factory appearance, color, & corrosion protection
- Written 2 year or 24K mile warranty*
Differential exchange or build your supplied core: $4245
In-house installation for manual transmission cars: $4745
In-house installation for automatic transmission cars & includes PCM shift-point calibration: $4820
Options:
- 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
- Shot peen & micro polishing of ring & pinion set: $260
Differential Shipping: FedEx insured ground shipping to lower 48 states: $100
Differential Core Charge: $750
- 100% refundable when good, undamaged core is returned within 15 days of new differential delivery
- Any good, unbroken, & assembled differential core in working order may be used for trade-in, but will-be refund is pro-rated based on the differential model that is returned.
Differential Core Return Refund Credit:
- 2 series, 1-rib core returned: $200 refund credit
- 3 series, 1-rib core returned: $425 refund credit
- 2 series, 3-rib core returned: $600 refund credit
- 3 series, 3-rib core returned: Full $750 refund credit
*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.
