Description

Assembled Super Finish™ 3rd Members

Fully built Super Finish™ 3rd members using all new parts and ready to drop into your axle.  Third members feature top quality Super Finish™ ring & pinion gears and your choice of lockers.  V6 units feature larger OEM style V6 gear sets with longer pinion gear.  Each unit is setup with solid pinion spacers for long gear life.  Trail-Safe pinion seal provided at no extra charge.  Triple-drilled flange covers most Pickup/4Runner driveshaft patterns.

 

Housing

Ratio

Spool

Detroit

ARB

Grizzly

Zip

TrueTrac

4Cyl

4.88

301715-1-KIT

301462-1-KIT

301468-1-KIT

301949-1-KIT

301955-1-KIT

TGI-308389

4Cyl

5.29

301716-1-KIT

301463-1-KIT

301469-1-KIT

301950-1-KIT

301956-1-KIT

TGI-308390

V6

4.88

301717-1-KIT

301464-1-KIT

301470-1-KIT

301951-1-KIT

301957-1-KIT

TGI-308391

V6

5.29

301718-1-KIT

301465-1-KIT

301471-1-KIT

301952-1-KIT

301958-1-KIT

TGI-308392

High Pinion

4.88

301466-1-KIT

301472-1-KIT

301953-1-KIT

301959-1-KIT

TGI-308939

High Pinion

5.29

301467-1-KIT

301473-1-KIT

301954-1-KIT

301960-1-KIT

TGI-308394

 

Application Notes:  High Pinion units should only be used in front axle applications.  Spool lockers should only be used in rear applications.  Spools will be harder on axles than a selectable or automatic locker.  Fully built 3rd members will not fit stock Tacoma or T100 axles.

Super Finish™ 3rd members do not require any break-in period.

Note: V6 Housings do not have an ABS sensor port and are not compatible with the factory ABS system.

Note: Follow Ring & Pinion break-in instructions below.  Failure to do so will void warranty.

 

Ring and Pinion Break-In Procedure:

New 3rd members require a break-in period to prevent damage from overheating. Any overloading or over-heating during this period can cause the gear oil to break down resulting in ring and pinion failure.

  • After installation, drive lightly for 20-30 minutes and then allow the differential to cool for at least two hours
  • Avoid heavy throttle use during the first 500 miles
  • Do not tow a trailer during the first 500 miles
  • Change oil after 500 miles to remove any particles suspended in the oil

This may seem unnecessary but it is very easy to damage the differential by loading it before the gear set is completely run in. New ring and pinion gears create excess heat when they are new. This excess heat can damage the heat treatment of the gears.

Additional information

Weight 65 lbs
Dimensions 19 × 13 × 13 in
Locker

Spool, Grizzly, Zip Air Locker, ARB, Detroit, TrueTrac

Gear Ratio

4.88, 5.29

Diff Housing

4cyl, High Pinion, V6