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.
