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#1
08-15-2007, 11:19 PM
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Went to check pinion angle, odd 9" behavior?
OK, so I disconnect the driveshaft to chuck a round bar in the 9" yoke to check pinion angle. Just for fun, I grab the yoke and give it a twist. The yoke moves about 1/8th turn before I feel the slack come out of the rear. WTF is this? I can turn the yoke back and forth quite a bit before the car starts to move above me. I'm running a Moser housing and 31 spline axle package. Currie nodular iron case, 3.90 street gears and detroit locker. Is this in any way normal behavior? What the heck is going on here?
thanks!!
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I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
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#2
08-15-2007, 11:25 PM
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Sounds like excessive play/backlash between the ring and pinion?
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Just a blind squirrel looking for a nut. |
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#3
08-15-2007, 11:34 PM
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Well, thats what I thought at first. But it feels like the gears are turning, but the locker has a lot of slack? Normal for a locker? Broken axle? How far do I need to dig into this thing? How easy is Currie to deal with on street/strip parts? This thing doesn't have a lot of time on it.
chip
__________________
I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
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#4
08-15-2007, 11:52 PM
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Only problem with twisting the yolk is you add up all the play in every part of the rearend. You add up all the play in the ring and pinion, then spiders and posi, and then the axle splines. I've panicked on this only to take things apart and find the backlash to be within specs.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
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#5
08-16-2007, 12:00 AM
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My 9" w/Locker is the same and was that way new from Moser
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74 Ventura 462/#13 heads/3350# 10.38 @ 128.89 MPH, N/A, Stock suspension, 275/60 Radial, Street legal, Tagged & Insured |
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#6
08-16-2007, 01:00 AM
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I had 28 spline stock axles and soft locker. The splines were wearing on the axles and in the locker. I could turn the tire 3" before the pinion moved. I wouldn't think would happen with Moser stuff though.
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68 Firebird Are you running with the wind or breaking it? |
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#7
08-16-2007, 12:25 PM
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Just got off the phone with Currie. They say the behavior is perfectly normal for a locker. Crisis averted. The guy was really cool, he did say to check my pinion angle. LOL!!
Thanks! Chip
__________________
I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
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