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Center Spider Diff Spur Gear Goto page 1, 2  Next          OFNA Nitro Talk Back Forum Forum Index -> Hyper ST Truggy View previous topic :: View next topic   Author Message triplebvalp Joined: 11 Mar 2006 Posts: 333 Location: Valparaiso, FL Posted: Sat Nov 07, 2009 2:53 pm    Post subject: Center Spider Diff Spur Gear Hey Folks, I need a new spur gear for my center spider diff ... the Hyper ST Pro manual lists the part number as Hohao # 86231 ... but, there is not a cross reference for that number to an Ofna number. The manual actually lists the center spur as part Hobao # 86225 with references Ofna # 27225 but, that is a 4 screw spur gear where as the spider spur gear is 6 screw. Back to top Author Message Casketman Joined: 23 Jul 2006 Posts: 495 Location: Braidwood,IL,USA Posted: Sat Nov 07, 2009 6:24 pm    Post subject: Did you drop a spider diff in there because I dont believe the ST came with a spider. At least mine didnt and the Exploded View I see on Nitrohouse doesnt show it having a spider diff either. So if you did drop one in there. You might want to find out what car that came out of or just look here for spider diff spur gears. Back to top Author Message triplebvalp Joined: 11 Mar 2006 Posts: 333 Location: Valparaiso, FL Posted: Sat Nov 07, 2009 6:29 pm    Post subject: Nope, didn't drop a spider diff from a different vehicle in it. My Hyper ST Pro came with a spider center diff. BTW, got it new in the box. Back to top Author Message Casketman Joined: 23 Jul 2006 Posts: 495 Location: Braidwood,IL,USA Posted: Sat Nov 07, 2009 6:31 pm    Post subject: Then hit that second link I have underlined there. Nitrohouse doesnt have a spider spur listed as a stock replacement part for the ST. Hell,Ofna nor Nitro have it listed as for sale now either. Back to top Author Message smith Joined: 27 Apr 2008 Posts: 156 Location: Havelock, NC Posted: Sun Nov 08, 2009 5:11 am    Post subject: You could call nitrohouse and talk to them they could get you one I sure but if I was you it would be a great time to get a new diff Jamman case and kyosho lightweight spur gear. Thats what I would do. Back to top Author Message triplebvalp Joined: 11 Mar 2006 Posts: 333 Location: Valparaiso, FL Posted: Sun Nov 08, 2009 5:30 am    Post subject: smith wrote: You could call nitrohouse and talk to them they could get you one I sure but if I was you it would be a great time to get a new diff Jamman case and kyosho lightweight spur gear. Thats what I would do. Which Jammin ? Can you provide a part # ? BTW, finally found it at Nitrohouse: http://www.nitrohouse.com/catalog/product_info.php?products_id=10535 Back to top Author Message smith Joined: 27 Apr 2008 Posts: 156 Location: Havelock, NC Posted: Sun Nov 08, 2009 7:42 am    Post subject: here is the case http://www.amainhobbies.com/product_info.php/cPath/1_25_132/products_id/3768/n/OFNA-Differential-Case Spur Gear http://www.amainhobbies.com/product_info.php/cPath/1_25_712/products_id/6779/n/Kyosho-Light-Weight-52T-Center-Spur-Gear-ST-R internals http://www.amainhobbies.com/product_info.php/cPath/1_25_635/products_id/6444/n/OFNA-Bevel-Gear I beleave you can also use the stock front and rear diff cases that come with the ST but im not 100% sure on that as I have never tryed it. Back to top Author Message triplebvalp Joined: 11 Mar 2006 Posts: 333 Location: Valparaiso, FL Posted: Sun Nov 08, 2009 10:10 am    Post subject: Hey Smith, That's great info ... Will my existing gaskets transfer to the Jammin diff ? Back to top Author Message smith Joined: 27 Apr 2008 Posts: 156 Location: Havelock, NC Posted: Sun Nov 08, 2009 11:51 am    Post subject: Im sorry I forgot about that no they will not work http://www.amainhobbies.com/product_info.php/cPath/1_25_132/products_id/3690/n/OFNA-Differential-Gaskets-3 Im pretty sure that the inside O rings will work just fine but I can not rember. Hope this helps Back to top Author Message triplebvalp Joined: 11 Mar 2006 Posts: 333 Location: Valparaiso, FL Posted: Sun Nov 08, 2009 1:56 pm    Post subject: Hey smith, I really appreciate your help ... I should do this but, adding all the parts up exceed the cost of a complete spider diff with spur gear off of flea bay. I got almost 2 years worth of racing from the original ... I expect I will be replacling the Hyper ST in the near future so, pull the trigger on the flea bay replacement. Back to top Author Message smith Joined: 27 Apr 2008 Posts: 156 Location: Havelock, NC Posted: Sun Nov 08, 2009 5:16 pm    Post subject: Thats cool know problem I was thinking of going with a different truggy but I love my ST so much I cant find the heart to get rid of it. Back to top Author Message triplebvalp Joined: 11 Mar 2006 Posts: 333 Location: Valparaiso, FL Posted: Sun Nov 08, 2009 5:34 pm    Post subject: You bet, the Hyper ST is a GREAT truggy and I will probably retire mine as a wore out shelf queen. But, that is not the immediate future. I will continue to race mine until Ofna comes out with it's replacement. I have been looking at the Jammin X2 ... but, not yet Back to top Author Message H9 Joined: 19 Jul 2009 Posts: 99 Location: Perth, Western Australia Posted: Sun Nov 08, 2009 6:11 pm    Post subject: The ST Pro in australia came with a center Spider diff too. Looks the same as the Hyper 8 spider diffs, but with a different crown wheel of course. Not sure if the internal gears are the same or not, I'll have a nosey when I strip it down later this week (the ST that is). Another good day with the beast yesterday (Sunday), 4th overall out of 17 truggy entries! Back to top Author Message smith Joined: 27 Apr 2008 Posts: 156 Location: Havelock, NC Posted: Mon Nov 09, 2009 12:36 pm    Post subject: H9 nice job I thank most of the Pro kits came with them im did. But im not sure I am the only person that I have seen in eastern North Carolina with one. Back to top Author Message DJ Joined: 22 Jun 2006 Posts: 979 Posted: Tue Nov 10, 2009 8:22 am    Post subject: Here are parts to refer to on your spider diff. S.D. assembling tool 19346 screws for S.D. 2.6x 21.5 mm 19444 S.D. case w/o-rings and shims 19441 gears, bevel set for S.D. (complete with pins,pin hub and shims)19440 52 tooth spur gear for S.D.(comes with bearing on the spur side) 27062 hope this is what your are looking for. 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