Results 1 to 4 of 4

Thread: 9'' non race ring and pinnion ?

  1. #1
    Senior Member MASTER BUILDER
    Join Date
    Mar 2009

    9'' non race ring and pinnion ?

    Hey guys, I bought a 9'' 3rd member with a 5.67 gear set off RJ just to test the et and rpm difference in the 1/8 mile from my 5.14. and if it works out I'm gonna change my gear set in the one that's in the car now because it looks twice as strong as the one I bought . The 5.67 I bought to test has a spool and a Motive gear in it and it's not stamped 9310 or 8620 but I think it is the 8620 by the #'s I pulled up and it does NOT have a after market large pinnion suport. it looks stock . question is will it hold up if I don't use my trans brake and just foot brake with a 670 H/P 2675 # car with a glide long enough to see if the gear ratio is going to work for me or not I only need a couple passes, { this one came out of a circle track car}
    Thanks Andy

  2. #2
    Senior Member RACING JUNKIE TheYellaBrick's Avatar
    Join Date
    Mar 2008
    Emmett, Idaho
    Did any of the Ford 4X4 pickups ever come with a stock ratio of 5.67 ?
    It could be a 'street/circle track' gear. I believe the drag only's are quite stouter to survive the shock load.
    to those who

    God Bless our folks in uniform
    "We the People, have your backs"

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Lot's of people run them, most gears are 8620's only the pro series are 9310's. I've bougth about 1/2 doz. sets from Quick performance, now running in some 4 sec. dragsters and 6. sec door cars. They are a little more brittle than a pro gear. The stock pinion support would be my only suspect if it has a drag racing spool. Some of the circle guys use the light weight spools and they will deflect on a hard launch. Take a look at the radious on the spool on the inside and out side of the spool flange if it's a 3/16" rad. instead of a 3/8" or 1/2"rad it could be dangerous for deflection.



  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Mar 2009
    thanks guys, and yea this did come out of a circle track car I pulled mine out today and it is the N series Moser case with 9310 richmond pro gears and MW Enterprise pinion suport and yolk with a very large spool. and that thing weights 30# more than the stock case. I just wanted to make sure I didn't oil down the track. I only want to make a couple of foot brake passes on it.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Copyright © 2005-2016 All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy