Question about 1999 Ford Super Duty F 450

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1999 ford f450 automatic v10

Hello, my rear seal on the trans to driveshaft i think its called a pinion seal? only lasts 200 miles then pops onto drive shaft. i have replaced the rear tail shaft of the trans still happens? any help would be great

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Mae sure trans is at correct level should be a vent close to top of trans make sure it is not plugged. that would cause a trans to pressurize and find the weakest point. just a shot

Posted on Jul 26, 2008

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How to remove rack and pinion from 99 chrysler lhs


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How to Replace a Rear Pinion Seal.
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-rear-pinion-seal.html
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How to replace Power steering rack and pinion gear on Chevy Silverado 2500 HD? http://technoanswers.blogspot.in/2012/02/how-to-replace-power-steering-rack-and.html

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How to Replace Driveshaft, Pinion Flange & Seal?

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How to Replace Power Rack & Pinion Steering Gear On 2007 Ford Taurus? http://repairhelpcenter.blogspot.in/2012/03/how-to-replace-power-rack-pinion.html


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How to Remove Power Rack & Pinion Steering Gear on Ford Windstar? http://repairhelpcenter.blogspot.in/2012/03/how-to-remove-power-rack-pinion.html

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Power Rack & Pinion Steering Gear replacing details for Buick Park Avenue and Pontiac Bonneville

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How to Replace Power Rack & Pinion Steering Gear on Mercedes Benz Truck? http://howtobyme.blogspot.in/2012/03/how-to-replace-power-rack-pinion.html


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These details will help.
Thanks.



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1 Answer

The trans is dripping fluid


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If this is the part that is leaking you can tell by a visual inspection. Sometimes it is just loose bolts, but do not tighten them too much as the Aluminum case of the trans will strip out. There is a maintenence procedure for an Automatic trans called a "Filter change or Filter cleaning".

In this procedure, the pan is dropped and the Filter serviced or replaced. Then the leaking gasket may be replaced. You have to ask in advance if a new gasket will be installed. You also have to make sure the trans will be opened and not just drained and refilled without removing the pan.

Some repair shops can save the old fluid which is usually good for many miles. Other shops have no recovery system and stick you with a bill for new fluid. Ask in advance.

The more serious leaks are in the tailshaft if you have a rear wheel drive vehicle or in the front pump area of all vehicle Automatics. The rear seal can be changed by pulling the driveshaft, although some rear seals may require the housing for the trans to be separated to get at the seal.

You may also have a line used for cooling the trans leaking with a rust-through. Not a big deal, just bolt on a new one.

I hope I have been very helpful in describing what your problem is. If your car is put on a hoist, ask to be shown what part is leaking before agreeing to a repair.

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I have a 1999 ford expedition and need to replace the tail shaft seal on the transmission. how is this done


to replace the tailshaft seal, you need to remove the driveshaft. just unbolt the u-joint at the rear differential, be careful not to lose the caps to the u-joint. once you've got the driveshaft loose at the differential end, it just slips out of the transmission. use a small prybar or screwdriver to pop the old seal out, don't scratch or nick the aluminum housing. then just use a large socket or pipe that fits around the outer ring of the seal to drive it in flush.

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How to replace the rear pinion seal on a 2005 escape


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1998 Silverado 1500 Rear End Howl/Leak/Clunk/Vibration Pinion


A pinion seal leaks for one or boyh of these reasons. A worn pinion bearing or a driveshaft vibration, Sounds as though you have both. Do not confuse tire howl with gear howl, be sure.The rear end can run 3 to 500.00 if not more. Ck the gear oil in the rearend for metal content. That will tell you alot. The hard shifting is generally from a sticky spool in the trans valve body. Have the trans serviced w/new oil and filter. The new oil often cleans the moving parts of gum and varnish buildup.in the valve body. One more thing, the rear ends take a special oil and additive if it's a limited slip or posi lock. You will have a popping/binding noise when turning if the wrong lube is install. Have your driveshaft aligned and balanced at at driveshaft shop.or you will end up tearing up the tailshaft on the trans. Good Luck

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Rear differential on a 2004 Mustang gt leaking fluid


this is for 2003 7.5 inch ring gear axle. SECTION 205-02A: Rear Drive Axle/Differential — Ford 7.5-Inch Ring Gear 2003 Mustang Workshop Manual IN-VEHICLE REPAIR Drive Pinion Flange and Drive Pinion Seal Special Tool(s) s3b%7eus%7een%7efile=st2026a.gif%7egen%7eref.gif2-Jaw Puller 205-D072 (D97L-4221-A) or equivalent s3b%7eus%7een%7efile=st1257a.gif%7egen%7eref.gifHolding Fixture, Drive Pinion Flange 205-126 (T78P-4851-A) s3b%7eus%7een%7efile=st1862a.gif%7egen%7eref.gifInstaller, Drive Pinion Flange 205-002 (TOOL-4858-E) or equivalent Removal
  1. Raise and support the vehicle.
  1. Remove the rear wheel and tire assemblies.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Remove the rear brake calipers to prevent drag during the drive pinion bearing preload adjustment. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Do not allow the calipers to hang from the brake hoses. Remove the rear brake caliper and support bracket from the knuckle as an assembly. Wire the caliper and support bracket assembly out of the way.
  2. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Index-mark the driveshaft flange and pinion flange (4851) to maintain initial balance during installation. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: The driveshaft centering socket yoke fits tightly on the pinion flange pilot. Never hammer on the driveshaft or any of its components to disconnect the yoke from the flange. Pry only in the area shown, with a suitable tool, to disconnect the yoke from the flange. Disconnect and position the driveshaft out of the way.
  1. Install an Nm (inch/pound) torque wrench on the nut and record the torque necessary to maintain rotation of the drive pinion gear through several revolutions.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: After removing the nut, discard it. Use a new nut for installation. Use the special tool to hold the pinion flange while removing the nut.
  1. Index-mark the pinion flange and drive pinion gear stem to maintain initial balance during installation.
  1. Using the special tool, remove the pinion flange.
Installation
  1. Inspect the pinion flange seal journal for rust, nicks, and scratches prior to installing the flange. Polish the seal journal with fine crocus cloth, if necessary.
  1. Lubricate the pinion flange splines.
    • Use SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.
  1. NOTE: Disregard the index marks if installing a new pinion flange. Position the pinion flange.
  1. Using the special tools, install the pinion flange.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Do not under any circumstance loosen the nut to reduce preload. If it is necessary to reduce preload, install a new collapsible spacer (4662) and nut. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Remove the special tool while taking preload readings with the Nm (inch/pound) torque wrench. Tighten the nut to set the preload.
    • Rotate the drive pinion occasionally to make sure the differential pinion bearings (4630) (4621) seat correctly. Take frequent differential pinion bearing torque preload readings by rotating the drive pinion with a Nm (inch/pound) torque wrench.
    • If the preload recorded prior to disassembly is lower than the specification for used bearings, then tighten the nut to specification. If the preload recorded prior to disassembly is higher than the specification for used bearings, then tighten the nut to the original reading as recorded.
    • Refer to the torque specification for used differential pinion bearings in the Specifications portion of this section.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Align the index marks. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Install the driveshaft with new bolts. If new bolts are not available, apply Threadlock and Sealer EOAZ-19554-AA or equivalent meeting Ford specification WSK-M2G351-A5 to the threads of the original bolts. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: The driveshaft centering socket yoke fits tightly on the pinion flange pilot. To make sure that the yoke seats squarely on the flange, tighten the bolts evenly in a cross pattern as shown. Connect the driveshaft. .
  1. Install the rear brake calipers.
  1. Install the rear wheel and tire assemblies.
  1. Lower the vehicle.

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2 Answers

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You cannot check universal joints with the driveshaft under tension. Trans needs to be in neutral (wheels blocked or on jackstands)
If diff is noisy, check gears by removing cover and checking lube for metal debris, gears for "sharpening" on edges. Generally it is cheaper to replace unit with one from a scrapyard. Any work regarding bearings or gears requires precise depth and lash adjustment or the unit will quickly fail again.
Universal joint failure will cause a "clunk" when engaging reverse or drive and also can cause vibration similar to out of balance tires. Worst case is a rhythmic squeak while going about 10-20mph.

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1 Answer

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also i think there was a driveshaft upgrade for police units

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