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Hey guys, I have a 94 7.3 liter turbo diesel with a manual transmission. The speedometer is bouncing all over and I can't read it. I got a new speed sensor for the transmission, but I can't figure out where it goes. there doesn't seem to be anything I can see on the transmission. Can anyone help me out here?
When you replace the sensor in the rear end, I would suggest that you remove the cover and check the "gear". Make sure that it is clear between the teeth. All it costs is a gasket and gear oil.
For the gasket you would use special RTV and the gear oil is synthetic $$$ plus additive.
Lubricant Capacities and Checking Procedures(Integral Rear Axle Differential Carrier
F-250, F-350 Reg & Chassis CAB, F-250/350 H.D. 10.25-Inch Ring Gear US pints 6.5(c)(d) Imp pints 5.4 Liters 3.0
(a) - Ford design conventional axles use Rear Axle Lubricant XY-90-QL or -KL (ESP-M2C154-A) or equivalent.
(b) - Service refill capacities are determined by filling the axle with the specified lubricant to the bottom of the filler hole with the vehicle in running position.
(c) - Plus 8 oz. (U.S. measure) additive friction modifier, C8AZ-19B546-A (EST-M2C118-A) or equivalent for limited-slip applications.
(d) - Rear axle lube quantities must be replaced every 100,000 miles (160 000 km) or if the axle has been submerged in water. Otherwise, the lube should not be checked or changed unless a leak is suspected or repair required.
Note: 6.5 pints of lubricant is the fill specification when the axle is installed in the vehicle. If the axle is out of the vehicle, fill with 7.5 pints of specified lubricant.