Thread: rear end lash
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Old 04-18-2003, 08:00 AM
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Cobra Make, Engine: ERA 427SC w/427so, ERA GT #2002
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ENTDOC
I don't remember exactly how to set up the Dana ring and pinion in question, but there are two adjustments that need to be made on any hypoid ring and pinions: pinion depth and backlash. Pinion depth is adjusted by shiming the pinion forward or backward in relation to the ring gear. Backlash is adjusted by moving the ring gear sideways into or away from the pinion with shims or threaded adjusters. I think the Dana uses shims.

Regardless of how the adjustements are made, you need a manual, Prussian blue and a dial indicator to make these adjustments correctly. The dial indicator is used to check backlash and Prussian blue is used to check tooth contact pattern.

Don't forget torque specs. The pinion bearings use a crush sleeve and/or torque specs to preload.

Hope this helps with your rear-end setup. It's not hard, just exacting to get it right.
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