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fresh 10 bolt howling already

Old 08-10-2013, 07:30 PM
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Default fresh 10 bolt howling already

had my 10 bolt rebuilt with all new bearings, new gm 4.10 gear set, and new axle bearings. did good for a while, but the howl started to set in slowly. now its quite loud at highway speeds. what causes this? improper backlash, bad pinion angle, not heat cycled correctly?
Old 08-10-2013, 07:43 PM
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Mine did the same. Professionally installed too. Backlash or improper heat cycle but mine were so... IDK
Old 08-11-2013, 07:14 PM
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Originally Posted by red_cap
had my 10 bolt rebuilt with all new bearings, new gm 4.10 gear set, and new axle bearings. did good for a while, but the howl started to set in slowly. now its quite loud at highway speeds. what causes this? improper backlash, bad pinion angle, not heat cycled correctly?
What mods does the car have?
Old 08-12-2013, 08:34 AM
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Common improper set-up. 10 bolts are a PITA to do and not every "pro" is capable of doing it correctly. The gears are likely toast now (unless you have maybe < 50 miles)and it will have to be done again.
Old 08-12-2013, 08:40 AM
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The shop that did mine has a great rep and builds drag cars
all day long. They know their stuff and mine had been ran at the track 3x since (hard on MT ET streets) and I drive 40 miles a day to work - it doesn't mean it's going to explode on you. lol
Old 08-13-2013, 09:02 PM
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this car is a h/c/i and supporting bolt ons. i busted a 4.10 ring gear in a temporary rear end while mine was being rebuilt. car makes 465whp/390tq
Old 08-14-2013, 10:50 AM
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Originally Posted by MikeWS6
What mods does the car have?
This wouldnt make a difference if the gears werent set up and heat cycled correctly.


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