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Rear spindle and bearing Rear spindle and bearing
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Old 06-28-2011, 04:28 pm   #1
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I have a couple of questions about an 85 4+3 coupe I'm working on.
1. I'm replacing the rear bearing assemblies. Is it proper protocol to grease the spindle where it goes into the bearing? There is quite a bit of grease in the one I'm replacing. If so what type of lubricant should I use?
2. Is there a drain plug for the rear differential in the 85?
3. Is 80-90W GL5 the correct oil for the rear diff? Should a posi additive be used?
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Old 06-28-2011, 09:08 pm   #2
 
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A limited answer: Yes, there is a diff drain plug and yes slip additive is needed.
1985 Z51 4+3 trans rebuilt 5.7 TPI,(.10 over) w/ CompCams 12-262-4, 52MM Throttlebody, underdrive pulleys, reworked heads, Hypertech Thermomaster chip, & cat back exhaust
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Old 07-11-2011, 07:56 am   #3
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Quote:
Originally Posted by TBone View Post
I have a couple of questions about an 85 4+3 coupe I'm working on.
1. I'm replacing the rear bearing assemblies. Is it proper protocol to grease the spindle where it goes into the bearing? There is quite a bit of grease in the one I'm replacing. If so what type of lubricant should I use?
2. Is there a drain plug for the rear differential in the 85?
3. Is 80-90W GL5 the correct oil for the rear diff? Should a posi additive be used?
1. I usually put a little anti-sieze on the spindle splines before putting it together. Just a light coat to keep the rust away.

Make sure you torque the axle nut to the reccomended reading.
And check it after a week of driving.
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