Ring and pinion life

Discussion in 'The Comp Buzz' started by boostedf22c, Aug 18, 2017.

  1. boostedf22c

    boostedf22c Active Member

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    Just out of curiosity, how many passes does everyone typically get out of a ring and pinion before it needs replaced?

    Mark Williams / Richmond 9.5" Pro Gear

    These have 30 hits on them.
     

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  2. Clint Neff

    Clint Neff Well-Known Member

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    Im sure it depends on Weight of car HP etc. What kind of fluid do you run?
     
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  3. boostedf22c

    boostedf22c Active Member

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    Royal Purple / Lucas Oil.

    I understand it varies based on power and weight. But we don't weigh much and don't hit the tires with much torque. It's a Honda man!! Haha.
     
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  4. Clint Neff

    Clint Neff Well-Known Member

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    Well one thing thats made a difference with my stuff is running Torco 85-140 Gear oil NON SYNTHETIC. From the cracks its hard to tell what thats from. Ill forward those over to my buddy at MW and see what he thinks. Im saying heat but im no expert as im a FORD guy haha!
     
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  5. boostedf22c

    boostedf22c Active Member

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    Thanks.

    I just want to make sure it's not user influenced. If it is what it is i understand, but if there is something I can do to increase life I will.
     
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  6. BenHolt

    BenHolt Member

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    How much fluid?
     
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  7. boostedf22c

    boostedf22c Active Member

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    3 quarts
     
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  8. R. Beyer

    R. Beyer New Member

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    is it a pro gear set?
     
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  9. boostedf22c

    boostedf22c Active Member

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  10. jake_1213

    jake_1213 Member

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    Hi Carey
    I do believe the rear end ratio has as much to do with it as the power and weight. A 5:83 has a much bigger pinion than say a 6:00 and so on. I'm not sure why but I've had a MW 9" 5:83 in my car since around 2009 and with about 150 runs on it I just pulled it out to find the ring gear was just starting to crack and chip. I always check for tight spots and that there is backlash all around but there was no signs and the cracks are very small and just starting to chip only on only a few teeth. I don't think a deeper gear would have lasted that long and even MW was surprised to hear how long it lasted. It's good enough to put back in for an emergency. I've heard that some swap the deep ratios out in 50 runs just to be safe. I wouldn't suggest trying 150 runs without pulling it out and watching. Hope this helps. See you at Indy. You parking in the same spot.

    Jake
     
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  11. smokinjoe

    smokinjoe Member

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    Carey,
    I used to have similar issues to what your seeing before I checked the oil level with the fluid level plug out in the center section and found I need 4.25 qts, I know seems like a lot but I went from only getting 20-30 passes on a set to my last set pulled out at 136 runs and the only reason I pulled them was to go from a 4:30 to a 4:10 ratio, I didn't even change oil for 2 seasons in there. I'm not saying it's for sure your problem but something to check into, I'm using Lucas oil 80w90. My gears are also just plain old Richmonds, no lightning, no rem polish or anything like that.

    Regards, Joe
     
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  12. Steve Polhill

    Steve Polhill Active Member

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    That was going to be my question. Pro Gear sets are Hard sometime too hard.
     
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  13. Michael Compton

    Michael Compton Active Member

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    Maybe be comparing apples to oranges here, but in my 2900 pd Super Stock Modified Camaro, I got close to 250 runs out of my 6.20 (Ford 9" - Richmond Pro Gears) and it looked and sounded as good as the day I put it in the car. Only changed to a 6.00 to lower my finish line rpms. I run close to 2.5 qts of Joe Gibbs 75w110 gear oil.
     
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  14. Charlie Yannetti

    Charlie Yannetti Well-Known Member

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    I've had great results dealing with Tommy Lee.. and he will answer any questions that you may have about gears, bearings, set-ups, fluids, etc.. I'm sure that you have heard of him, or even know him.. give him a call.. 423-534-1457..
     
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  15. boostedf22c

    boostedf22c Active Member

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    I appreciate all the info. Thanks.
     
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