What fluid does a NP231 transfer case take?

All Wrangler transfer cases require ATF, literally any ATF is fine with ATF+4 being a superb choice. It holds about 2 quarts.

What fluid goes in your transfer case?

automatic transmission fluid
Most transfer cases are filled with an automatic transmission fluid, which is usually red in colour. Others use a thicker gear oil, and some use a specialized fluid that is specifically made just for that transfer case.

What transfer case is in a 1989 Jeep Wrangler?

The transfer case in the ’87-’91 YJ was the New Process 207. The NP207 was chain-driven and worked well in most conditions and terrain, and it is capable of withstanding most tough wheeling situations.

Is transfer case fluid change necessary?

Why is transfer case fluid important? If the fluid runs low or becomes contaminated, it can lead to failure of the differential. To avoid this issue, it is recommended that the transfer case fluid be changed periodically, normally every 30,000 miles, especially in vehicles that tow or use four-wheel drive often.

What fluid does a AX15 take?

Its GL5 Gear oil for AX15. Personally I only use Royal Purple Fluids, they are 100% synthetic and have been proven to greatly reduce friction and heat, as well as improve gas mileage.

How much fluid does a NP231 take?

I’m pretty sure the NP231 specs are for about 2 quarts of fluid.

What transfer case is in a 1987 Jeep YJ?

This part time transfer case is found in 1984-1987 XJ’s and the 1987 YJ. The NP207 was the transfer case in Jeep referred to as the Command Trac option.

What transfer case is in a 1995 Jeep YJ?

Since 1988, the NP231 has been the Command Trac transfer case used in Cherokees (XJ), Comanches (MJ), and Wranglers (YJ). It has been the Command Trac transfer case in the Grand Cherokee (ZJ) since it… The new Wrangler (TJ) continues to use the NP231. 1987-95 YJ and 1997-04 TJ Wrangler rear of case has circular I.D.

What happens if you don’t change your transfer case fluid?

Over time transfer case fluid becomes contaminated due to carbon build up from cooling hot drivetrain components. This may affect a vehicle’s performance, causing the vehicle to shudder when turning or emit whining sounds. If the fluid runs low or becomes contaminated, it can lead to failure of the differential.

How do you know if your transfer case fluid is bad?

Strange Grinding, Growling or Humming Noises If you hear grinding, growling, or humming noises that change with your vehicle speed, it may be coming from the transfer case. This could indicate a low fluid level or some mechanical problem such as bad bearings, loose chains or damaged gears.