Overview
The Trail Gear 140179-1-KIT is a pair of heavy duty chromoly rear axle shafts with 30 splines for the Toyota 8 inch rear axle. It fits the 1986–1995 Toyota 4Runner and Pickup models.
Both shafts come in one set, so both rear sides are upgraded together. The pair is chromoly and made for the Toyota 8 inch axle, and the differential is not included. Check your existing shafts for length before ordering, since length is not confirmed for this pair.
The word heavy duty on a part like this refers to the chromoly construction listed by Trail Gear rather than any published strength rating. A pair is sold together, so both rear shafts are replaced at once, which helps keep wear even. The Toyota 8 inch rear axle uses 30 splines here, and the differential is not included. Owners fitting a locker or limited slip should confirm that the differential splines match.
Key features
- Heavy duty chromoly rear axles
- Supplied as a pair
- 30 splines
- For the Toyota 8 inch rear axle
- Differential not included
Shaft fit and axle wear
Axle shafts carry torque from the differential to the wheels, so a heavier shaft is only part of a sound upgrade. Check the bearings, seals and hub flanges for wear whenever the shafts come out, and clean the spline area before fitting new parts. Spline mismatch is a frequent cause of trouble, so fit each shaft with the differential as it sits in the truck.
Fitting a locker or limited slip changes the load on each shaft, so the rear end should be inspected before heavy off-road use. Check for play at the wheel, leaking seals and noise under throttle. Replacing the pinion seal and carrier bearings can be worth considering at the same time when the axle is already open, since those parts take the same loads and are reached in the same job.
Specifications
| Brand | Trail Gear |
|---|---|
| Part number | 140179-1-KIT |
| UPC | 70000621389 |
| Part type | Rear axle shafts, heavy duty, pair |
| Material | Chromoly |
| Axle | Toyota 8 inch |
| Axle location | Rear |
| Spline count | 30 splines |
| Quantity | Pair |
| Differential included | None |
Vehicle fitment
It fits the 1986–1995 Toyota 4Runner and the 1986–1995 Toyota Pickup.
Toyota trucks from before 1986 or after 1995, and the Land Cruiser, are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The 30 splines must agree with the differential or locker already in the rear axle. Check that before installing.
What’s included
- Two heavy duty chromoly rear axle shafts (a pair)
Not included: A differential.
