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Old 09-15-2004, 05:46 PM
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quick rear end question

i have a 68 firebird with a 7.5 10 bolt rearend, and one of the u-joint bolts broke off inside the rearend where the driveshaft connects. i dont know what to do to get it out, i do see that there is a nut around a stud in the middle of where the driveshaft meets the rearend (not sure on what it is called so i will call it the housing for info purposes) and i am wondering, if i take this bolt out will i beable to take the housing off and easy out or drill out that broken off bolt? or if you have any other ideas please let me know. and is that bolt pressed on or is it just torqued? any and all help is greatly wanted! thanks in advance


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Old 09-15-2004, 06:30 PM
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Dont break your yoke!

99%-sure that that big nut you're looking at secures the yoke (aka companion flange) to the pinion-shaft. You need to count how many threads are exposed above the pinion nut before you remove it, and you need to mark the flange, shaft, and nut. You must return the nut back to the same exact location, since it keeps the seal in and torque on the pinion the same.

You probably ought to replace the seal when you do it.

You'll likely need something like a companion flange removal tool (I think GM# J-861401) which the dorks use, or you can get by with a big-***** pipe-wrench and a gear puller.

As far as drilling-out that broken bolt, that's always a pain in the butt. I'd recommend you use a normal (right-twist) drill-bit, and you try to drill into it from the rear-side (to work the bolt back out the way it came).

Have fun!

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Old 09-15-2004, 07:55 PM
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thanks for the quick reply. i will try and do what i can and if not i will just drop the rear end and roll it out of there! lol
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