Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

NP208 help

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by goblazeinco, Nov 1, 2002.

  1. goblazeinco

    goblazeinco Registered Member

    Joined:
    Nov 9, 2001
    Posts:
    33
    Likes Received:
    0
    Location:
    Longmont,CO
    I have an '86 with a NP208 t-case, automatic,dana44 and 14bolt ff and .Here is the problem I get a rumble when I am on the gas lightly, when i give it more or let it off completely it stops. It does it in both 4wheel dror 2. I think it could be a bearing in the t-case. Does anyone have a comment on this or any better ideas. Also, how hard is it to rebuild a np208 t-case? /forums/images/graemlins/k5.gif

    Thanks
     
  2. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

    Joined:
    Apr 20, 2001
    Posts:
    3,271
    Likes Received:
    134
    Location:
    Clovis CA
    It sounds like a vibe caused by incorrect pinion angle.
     
  3. SAVAGE1

    SAVAGE1 1/2 ton status

    Joined:
    May 22, 2000
    Posts:
    1,104
    Likes Received:
    0
    Location:
    BAY AREA, CA
    I have the same sound. Sounds like a pipe being dragged on pavement right. Its pretty loud when coasting at freeway speeds. Frizz is right, its due to your pinion angle. If you're still running your stock driveshaft, look into getting a CV shaft made. I tried using degree shims on my extended non-CV shaft and the vibes are still there.
     

Share This Page