Recommend Gear Oil
Name Brand 80w-90 GL5 or better.
New Gear Break-In Procedure
All new gear sets require a break-in period to prevent damage from overheating.
Any overloading or over-heating will cause the gear oil to break down and the
ring & pinion will fail. Please follow these guidelines to insure proper break-in.
- Avoid heavy acceleration during the first 500 miles.
- After light use for the first 15-20 miles it is best to stop and let the
differential cool before proceeding.
- Our warranty requires at least 500 miles differential break-in before towing.
- The first time you tow the rig, travel a short distance (about 15 miles) and
stop to let the differential cool before proceeding.
- We highly recommend changing the oil after the first 500 miles. This will
remove any metal particles or phosphorus coating that has come from the new gear
set and bearings.
This may seem unnecessary but it is very easy to damage the differential
by loading it before the gear set is completely broken in. The greatest damage
results when a new ring & pinion has been run for several miles during the first
500 miles and the oil is very hot.
Any heavy use or overloading during the first 500 miles will cause irreparable
damage to the gear set that can be determined by inspection of the gear set and
will void our warranty.
Lockers
Mechanical Locking differentials will bang and clunk during normal operation. Both
rear tires must measure the same height from the ground to the top of the wheel in
order for a locking differential to function properly.
Gear Noise
Most aftermarket gears are primarily designed for strength and may have some noise.
This noise is especially inherent in vans, SUV's and passenger cars.
Please note: We will NOT warranty a High Pinion if
used in the rear of a vehicle. It is not designed for this and we cannot guarantee
its reliability. Use it in the rear at your own risk. Thankyou.
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