8 3/4 rear end

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SpeedBump

SpeedBump

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I have a bolt that broke on the yoke....if I remove the yoke will that mess up the lash on the pinion gear
 
SpeedBump said:
.if I remove the yoke will that mess up the lash on the pinion gear
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Depends on which 8 3/4 you have, the "489" (last 3 digits of the casting number) case uses a crush sleeve and you will have to put the pinion nut back exactly where it was to maintain pinion bearing preload.
If you have a "742" or "741"case you wont have to worry about re setting preload, these dont use the crush sleeve, just torque the nut back to spec.

Gear lash wont be affected by removing the yoke, just bearing preload on the 489 case.
 
Because the yoke bolts are grade 8, and don't bottom out,, they just snap,, they are generally pretty easy to back out with a small cape chisel,, there's often a little burr left sticking up at the break,, kinda tap it backwards till you can get pliers on it,,

If you got a dremel,, or similar grinder,, grind a slot, and use a small screwdriver to remove.. clean up the mating surface..

hope it helps
 
1/8 left hand drill bit will remove,make sure you punch a spot in center before you drill shoud back out after it starts in,tim
 
Or just pull the yoke, take it to a machine shop and let them deal with it. Drilling and extracting under a car sucks
 
Thanks guys I ended up just removing the whole rear end and taking it to a machinist(after I broke a tap in it)
 
Same thing happened to me... I pulled the third member and drilled it out with a carbide bit.

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PITA

AlV
 
A grade 8 bolt broke at 20 ft lbs of torque? it must have been a bad one.
 
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