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When in "4-Low" mode the front and rear axles are locked together and power is sent to all four-wheels through a 2.92:1 gear reduction in the power transfer unit; providing a crawl ratio of 56:1 for four cylinder Jeep Cherokees and a 47.8:1 crawl ratio for six-cylinder Cherokees. All Cherokees with this system have a raised ride height of one inch.
Crawl ratio is a term used in the automotive world to describe the highest gear ratio that a vehicle is capable of. Note that gear ratio, also known as speed ratio, of a gear train is defined as the ratio of the angular velocity of the input gear to the angular velocity of the output gear, and thus a higher gear ratio implies a larger speed reduction, i.e. the input speed is reduced more at ...
The AX15 built by Aisin was used in Jeeps with the AMC 242 (4.0L) Inline 6 engine, as well as the AMC 258 (4.2L) Inline 6 engine and AMC (2.5L) Straight 4 engine.This included vehicles such as the Cherokee(XJ), Comanche (MJ), and Wrangler (YJ and TJ) and 1994-1995 Jeep Grand Cherokee ZJ as well as the 1st and 2nd generations of the Dodge Dakota.
26-tooth input gear, 1¼" intermediate shaft and 2.42:1 low range, 3" input hole; 29-tooth input gear, 1¼" intermediate shaft and 2.46:1 low range, 4" input hole, Dana 20 case; The normal (3") input Dana 18s are interchangeable, but the input gear must match the transfer case. The "big hole" (4" input) Dana 18 is transmission-interchangeable ...
Neutral mode is intended for towing the vehicle. In 4-Lo, the front and rear axles are locked together through a 2.72 reduction gear ratio. The NV247 transfer case is mated to front and rear axles containing Jeep's Vari-Lok differentials. Vari-Lok differentials also use a gerotor to transfer torque between the wheels on either side of the axle.
The Jeep Cherokee (XJ) is a sport utility vehicle manufactured and marketed across a single generation by Jeep in the United States from 1983 (model year 1984) through 2001 — and globally through 2014. It was available in two- or four-door, five-passenger, front-engine, rear- or four-wheel drive configurations.
The 45RFE was introduced in the Jeep Grand Cherokee in 1999, it is notable for including three planetary gearsets rather than the two normally used in a 4-speed automatic. It also features three multiple disc input clutches, three multiple disc holding clutches, and a dual internal filter system (one primary filter for transmission sump, one for the fluid cooler return system).
Transmissions from Jeep wranglers Length: 23.5" (I6), 24.8" (V6). It features a 14mm hex fill plug on the passenger side and a 17mm hex drain plug on the bottom (with a strong magnet for attracting metal flakes). Gear ratios: