4Cyl Complete 3rd Members - Detroit, Spool, or ARB

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4Cyl Complete 3rd Members - Detroit, Spool, or ARB

SKU TDIFF-3M4

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Product Name Price Qty
3rd Member 4Cyl 4.88 Spool 140066-1-K
$597.55
3rd Member 4Cyl 4.88 Detroit 140034-1-K
$949.05
3rd Member 4Cyl 4.88 ARB 140040-1-K
$1,300.55
3rd Member 4Cyl 5.29 Spool 140067-1-K
$597.55
3rd Member 4Cyl 5.29 Detroit 140035-1-K
$949.00
3rd Member 4Cyl 5.29 ARB 140041-1-K
$1,299.00
OR

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Details

All new parts, no used housings or internal parts. Ready to drop into your axle. Third members feature top quality ring & pinion gears and lockers. Each unit is setup with solid pinion spacers for long gear life. Triple drilled flanges included covers common driveshaft patterns.

 

Application Notes:High Pinion units should only be used in front axle applications. Use in the rear axle will lead to ring and pinion failure.Spool lockers should only be used in rear applications. Spools will be harder on axles then a selectable or automatic locker.

 

Ring & Pinion Break-In Procedure


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

 

  • * After installation drive lightly for 20-30 minutes and then allow the diff 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 & pinion gears create excess heat when they are new. This excess heat can damage the heat treatment of the gears.

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