Results 1 to 5 of 5

Thread: 85 250sx differential compatabilty

  1. #1
    Join Date
    Aug 2004
    Location
    Gettysburg PA
    --
    13

    85 250sx differential compatabilty

    Hello guys,
    first off wasn't sure whether to post this here or in the ebay forum, but im looking to buy a differential for my atc and found a pretty nice looking one on ebay. Its listed as an 87 trx250 rear end but also has others, including 85sx in the title so I just wanted to double check and see if these were compatible or if the seller is just trying to get more hits. thanks! heres a link

    http://www.ebay.com/itm/1987-TRX250-...f51987&vxp=mtr

  2. #2
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,014
    will fit no problem

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  3. #3
    Join Date
    Aug 2004
    Location
    Gettysburg PA
    --
    13
    thanks atc500x!!

    didn't wana blow all that money and not have it fit!

  4. #4
    Join Date
    Jan 2011
    Location
    Choctaw, OK
    --
    2,755
    The TRX diff is the same gearing as the ES. The SX gearing is unique to only the SX. The ES/TRX ring gear is one tooth larger so you will loose a little top end but gain torque on the bottom end.

  5. #5
    Join Date
    Apr 2012
    Location
    USA
    --
    4,133
    My cousin has a 250sx with a big red 250es rear end, that thing is a crazy wheelie machine vs my stock 250sx. I don't think he loss much top end speed, but he gets there a a bit quicker than me. probably top speed of ~52mph vs mine at 55mph.

//ArrowChat Integreation Code //