1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

tires vs gears

Discussion in '40- & 55-Series Tech' started by rusmannx, Aug 25, 2003.

  1. rusmannx

    rusmannx

    Messages:
    1,159
    Likes Received:
    13
    Joined:
    Feb 9, 2002
    Location:
    HIT IT!
    i'm really hoping to go to 36's before to long when i spring it over.
    i'm on 33's right now.

    for daily driving, what gears should i go down to?
    i know i could do the sm420 conv, but will that really help me around town?

    i've been looking at the table interco has
    http://intercotire.com/html/table.htm
    and it looks like to get back to my current ratio with 36's i'd need some
    4.56's or maybe 4.88's.

    what are your thoughts?
     
  2. JasonH

    JasonH

    Messages:
    2,130
    Media:
    1
    Likes Received:
    45
    Joined:
    Jul 12, 2002
    Location:
    McKinney, Texas
    What motor are you running?
    I've got a 2F, SM420, spring over, 4.11's and 36x14.50's. If you're motor is strong, the 4.11's will work fine on the road. I can cruise at 75 easily on the highway. If I could afford it though, I'd probably go with 4.88's as I don't drive it that much and I trailer it to the trail.

    The SM420 will actually make it worse on the road. First doesn't get used, so you use 2,3, and 4. The gap between 2nd and 3rd is huge, so you need good power to go through it. 4th is 1:1 just like what you have now so no difference there.
     
  3. hammerhead

    hammerhead

    Messages:
    1,995
    Likes Received:
    0
    Joined:
    Jul 5, 2003
    Location:
    Central, Utah
    My SOA 40 on 35s w/4.11 gears is perfect but I have stock 4-speed. Do the SOA and tires first. If you're not happy with performance after that switch to a four speed.
     
  4. wheelie

    wheelie

    Messages:
    64
    Likes Received:
    0
    Joined:
    Apr 22, 2002
    run 35's sm465 411's works for me, my 76 is same set up sept 38's little lower wouldnt hurt.
     
  5. woody

    woody Internet Fireman Staff Member

    Messages:
    10,333
    Media:
    303
    Likes Received:
    1,089
    Joined:
    Jan 15, 2002
    Location:
    Toquerville UT
    SM420 won't do squat for ya in town, actually will make things worse, as noted.

    IMO, install the tires and see what you think...it's easy to make that a two-step process and decide later. Since no two people have the same expectations for street driving, it may drive ya nuts, or you may not care.

    I run 38.5's on my stock 4.11 gears, but have the added power of the 350 TBI. No complaints, but my rig has the granny and is 95% trail use only anyways. For a couple hundred miles of road time, most of that between trails, I wasn't investing in gears...