1981 Pontiac Firebird delay in rear end engagment

1981 PONTIAC FIREBIRD
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SORDOFCONAN
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Drive Train Axles Bearings problem
1981 Pontiac Firebird V8 Two Wheel Drive Automatic

after having the transmission rebuilt by a local very good mechanic for a broken orbital gear and replacing both u-joints my car still has a 1 second delay after you shift from either P or N with a clunk as the rear engages, i have to replace a axel shaft seal so while i have it apart what should i look for to cure this dilemma, the auto parts guy says i need to adjust the pinion, not sure what he means, with shims? the tranny is a 350. thank you for any help
Jul 29, 2009 at 3:12 PM
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MHPAUTOS
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HI there,

what he is talking about is the pinion back lash, not this is a critical setting if you get it wrong you will destroy the diff, i would get a mechanic to set this up for you.

mark (mhpautos)
Jul 29, 2009 at 11:39 PM
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