u joint - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 06-11-2009, 09:57 PM Thread Starter
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u joint

I have a quick question. My u joint is going out on my truck. What kind of bolts are holding the driveshaft at the rear of the transmission. they look like they have a star shaped head.

Is their anything special i need to do to drop the drive shaft. I've never removed a two piece drive shaft

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post #2 of 6 (permalink) Old 06-12-2009, 04:00 AM
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i belive it is a 12 point 10mm socket is all you need to un bolt the drive shaft

99 psd 123000mi supechips programmer 4" magnaflow exausht.
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post #3 of 6 (permalink) Old 06-12-2009, 04:53 AM
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I like to start at the rear axle. Loosen the u-joint straps, and drop the rear half of the shaft. Be careful to set it on some cardboard.

Then remove one bolt from the carrier bearing, and loosen the other.

Remove the bolts from the trans, and while holding it with one hand, remove the last carrier bearing bolt. It will suddenly get very heavy. If you are doing this on the ground, you can use one leg to hold the driveshaft while removing the last bolt.

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post #4 of 6 (permalink) Old 06-12-2009, 06:39 AM
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you need a 12mm 12pt socket preferably impact, and swivel. if you need to split the 2 piece use a paint marker or good tire crayon and mark a straight line from one end to the other. you will need to spline the driveshaft back together exactly or bad vibes will happen.
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post #5 of 6 (permalink) Old 06-12-2009, 10:18 PM Thread Starter
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thanks guys

2000 FORD F250 2WD 7.3 6spd,
BULLYDOG MONITOR,BULLYDOG 6 POSITION CHIP,BULLYDOG 4" EXHAUST,AFE STAGE 2 COLD AIR INTAKE, Garrett gtp38r turbo, SOUTHBEND CLUTCH AND FLYWHEEL,BILSTEIN SHOCKS ,7 GALLON AIR TANK,SEALED VIAIR AIRCOMPRESSOR,ANVIL AIR HORNS,(2) 10 JL AUDIO SUBS, (1) MEMPHIS AMP AND (1) SONY XPLOD AMP, Truck bed has been LINEX'D in 2010, Fire and Ice brake light,
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post #6 of 6 (permalink) Old 06-15-2009, 07:26 AM
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I like to mark all of the yolks to make sure its going back like it was or there may be vibration . Look at the bearing cups on the u joints if they are shiny the cup could be spinning in the yoke which usually means the yoke is bad and needs to be replaced . Go ahead and put some grease on the slip and stub while its apart .
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