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TCR AUTOMOTIVE AND PERFORMANCE

TUCSON, ARIZONA

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REAR DIFFERENTIALS, RING & PINIONS AND LOCKERS

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  Prices do not include S/H

SEE IMPORTANT TECH DATA AT BOTTOM OF THIS PAGE.

6.7 " RING & PINION SETS

 Photo is representative of all 6.7" Ring and Pinion Sets

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250:1      6.7" Ring & Pinion Set    $310.95    P/N 1091076

293:1     6.7" Ring & Pinion Set    $310.95    P/N 1091077

330:1     6.7" Ring & Pinion Set    $310.95    P/N 1091078

342:1     6.7" Ring & Pinion Set    $310.95    P/N 1091081

373:1     6.7" Ring & Pinion Set    $310.95    P/N 1091083

390:1     6.7" Ring & Pinion Set    $314.95    P/N 1091084

410:1     6.7" Ring & Pinion Set    $310.95    P/N 1091087

7.5" RING & PINION SETS

Picture is representative of all 7.5" Ring & Pinion Sets

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4.56:1  7.5"  IFS Ring & Pinion Set    $249.95    P/N 1091093

4.88:1  7.5"  IFS Ring & Pinion Set    $249.95    P/N 1091099

5.29:1  7.5"  IFS Ring & Pinion Set    $249.95    P/N 1091105

529::1  7.5"  IFS Ring & Pinion Set    $295.95    P/N 1091106  Tacoma (2WD/4WD V6)  T100, Tundra (95-04) w/o Locker

529::1  7.5"  IFS Ring & Pinion Set    $286.95    P/N 1091107  Tacoma (2WD/4WD V6)  T100, Tundra (95-04) Reverse R&P

571::1  7.5"  IFS Ring & Pinion Set    $249.95    P/N 1091111

8" RING & PINION SETS

Picture is representative of all 8" Ring & Pinion Sets

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456:1  8" Ring & Pinion Set    $276.95    P/N 1091096

488:1  8" Ring & Pinion Set    $229.95    P/N 1091102

529:1  8" Ring & Pinion Set    $229.95    P/N 1091108

571:1  8" Ring & Pinion Set    $229.95    P/N 1091114

LOCKERS

8 " Detroit Locker ( 4cyl)    $515.95    1091015

8 " Detroit Locker V6 Turbo   $515.95    1091018

TRUETRAC LIMITED SLIP

Picture is representative of all TrueTrac Limited Slip

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Truetrac Limited Slip (7.5") IFS Front    $431.95    P/N 1091030

Truetrac Limited Slip (7.5") Rear    $685.95    P/N 1091031                                                                  (may require 2 carrier bearings P/N 1091004 for this application)

Truetrac Limited Slip Front (8") 4cyl    $431.95    P/N 1091033

Truetrac Limited Slip REAR (8") 4cly    $431.95    P/N 1091036

Truetrac Limited Slip REAR (8")  V6 or 4cyl Turbo    $431.95    P/N 1091039

CARRIER SPOOLS

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6.7" Carrier Spool    $266.95    P/N 1091042

8" Carrier Spool - 4cyl    $249.95     P/N 1091117

8" Carrier Spool - V6    $249.95    P/N 1091120  

SOLID PINION SPACERS

Solid Spacer 4 cyl    $19.95    P/N 2053154

Solid Spacer V6 & High Pinion    $19.95    P/N 2053156

IMPORTANT TECH DATA

WHAT GEAR RATIO DO I NEED ?

Differential Gear Ratios determines the number of times the drive shaft ( or pinion) will rotate for each turn of the wheel. So if you have a 3.73:1 gear ratio, the drive shaft truns 3.73 times for every turn of the whee.

Gear ratio is calculated by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear. The higher the number, the lower the ratio -- a 5.29 gear has a lower ration than a 4.10 gear. With a lower gear ratio, the drive shaft (and thus the engine) turns more for each revolution of the wheel and delivers more power and torque to the wheel for any givin speed. Lower ratios are generally desireable when going off-road. Higher ratios are better for freeway driving since they run at lower RPM's and offer better fuel economy.

Changing the tire size also affects the final drive ratio. Switching from a 30" tire to a 35" tire changes the final drive ratio by about 17%. This may drop the engine out of its "power band" and result in poor performance and fuel economy. To restore performance, you must change the gear ratio to compensate for the change in tire size. If you originally had 3.07 gears, you need a ratio that is approximately 17% lower, such as a 3.55. If you want to increase off-road performance, you might want a 4.10 or lower ratio.

This table is based on a stock 22R/RE engine with both 4 and 5 speed transmissions.

RPM is calculated at 55 mph.