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duke1n. Manual says 3.08 liters or 3.25 quarts for 241 HD.
This unit took 3 quarts.
The NP241 is a solid, reliable transfer case and superior to the NP203 it replaced. But as they age, the drivechain can stretch. This setup with the slip in the transfer case is also less reliable than when the slip occurs in the driveshaft itself.
The New Process 208 is a chain-driven transfer case. This transfer case is a good gear box with a low ratio of 2.61:1. The weakest part of this transfer case is that the shifter fork wears easily, causing shifting problems. This transfer case was used in production vehicles manufactured from GM, Dodge, and Ford.
Re: NP205 or NP208 Like jason said, the NP205 is regarded as the better of the 3 that gm used on these trucks. Some advantages of the 205 is that its gear driven and has a cast iron case, which also means its heavier. The 208 is chain driven, has an aluminum case and also has a lower low gear range than the 205.
This transfer case is considered by most people to be nearly indestructible in most applications. The cast iron housing combined with beefy internals puts this case weight at nearly 140 pounds dry. High-range gearing is 1:1, and the NP205 has a low-range ratio of 1.96:1.
The NP205 is arguably the King of Transfer Cases. It’s a heavy duty, gear driven unit that was used in a variety of applications, including Ford, Dodge, and GMC/Chevrolet heavy duty pickups….NP205 Specs.
Manufacturer: | New Process Gear | |
---|---|---|
Ratios: | High Range: | 1.00 : 1 |
Low Range: | 1.96 : 1 |
It is recommended that your transfer case fluid should be changed every 30,000 miles, so your seals should be inspected during this time for any signs of wear.
The NP205 input gears, no matter what vintage or model, are always the same internally. This allows you to swap the input shaft between the various model transfer cases. One difference that must be taken into consideration is the front input shaft bearing.
A divorced or independent transfer case is completely separate from the transmission. It is located further down the driveline than a married transfer case and connected to the transmission output shaft by a short driveshaft.
Without a transfer case, you will not be able to drive the vehicle since the power is split 50/50 to the front and rear drive shafts and in 4WD or 4H mode. Hence, without a transfer case, a traditional 4WD vehicle cannot drive.