Question about Ford F-250
If it's leaking then it needs a gasket put on or RTV GASKET MAKER put on the cover or it's just simply cracked some how if it's the cover then take a drop pan drain the remaining fluid and clean both surfaces very good possibly spotless then apply the RTV high torque grey sealant gasket maker very thick around the edge and center where the bolts are and re apply the cover but make sure it lines up and is very clean inside also if it's a slip posi rear end you will need a bottle of friction conditioner and 3 1/2 bottles of motor craft differentail fluid as recommended by ford and remove the filler plug after the RTV is dry and refill the rear axel and if it remains to leak either you sealed the cover wrong or bad plug otherwise the axel is cracked and needs to be replaced
Posted on Mar 23, 2014
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Posted on Jan 02, 2017
SOURCE: leaking rear axel seal
Rear wheel Brake caliper and rotor, if equipped Brake drum, if equipped Axle retainer nuts Axle shaft, seal and bearing assembly
Posted on Apr 09, 2009
SOURCE: rear axel seals are leaking
you can purchase a haynes repair manuel at your local parts store for your 2004 Ford F-150. these books have step by step information with some illustrations that will be benifical in completing your desired repairs of replacing your rear axle seals..hope this helps you. chris
Posted on May 13, 2009
You will need to remove the differential rear cover,drain fluid, remove wheel, brake drum, (rotor) . Unbolt center diff. pin, carefully remove (don't loose shims) push axle in remove lock keeper, then slide out axle, replace seal, put some grease on it, slide axle in reverse all to install.
Posted on May 22, 2009
do u mean the axle has "play" when u grab the tire and wiggle it up and down?? if it has play, then it propbably needs an AXLE SEAL AND AXLE BEARING.you will have to carefully inspect the axle itself where the bearing rides for any gouging or damage. THIS JOB requires a decent amount of mechanical skill. 1ST you need to remove the rear end COVER and drain out the gear oil into a drain pan.2ND remove the brake caliper and rotor . 3RD spin the" ring and pinion " around until u see a 5/16 bolt that passes thru from the pass. side to the drivers side. u have to remove this bolt. u will need to "hold "the gears from turning in order to break loose this bolt. 4TH remove this bolt and slide out the large metal ""PIN" that 'divides" the rear end in half. NOW CAREFULLY WITHOUT TURNING THE REAR END SPIDER GEARS,PUSH IN THE AXLE TOWARDS THE INSIDE SO U CAN REMOVE THE "C-CLIP" AT INNER END OF AXLE. now u can slide out axle and youll be able to replace seal and if needed axle bearing. let me know if u need more info.
Posted on Sep 06, 2009
Time to drain and replace the fluid. The gear lube does not last long in these rear differentials. Use Valvoline 85-140 weight semi-synthetic. It will slow or even stop the leak and prevent future wear. Only replace the seals if the leak gets bad. Hint: the fill plug is 3/8" socket wrench, the drain is 3/4" socket wrench. Attach a short length of vinyl tubing to bottle to fill the differential.
Posted on Oct 22, 2009
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