Warn O/d Installed

Discussion in 'Flat Fender Tech' started by william_cj3b, Jul 2, 2016.

  1. Jul 2, 2016
    william_cj3b

    william_cj3b Sponsor Sponsor

    Milton, FL
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    I finally finished my o/d rebuild and installed it late last night. I still need to trim the trans cover and install the shift boot. Tcase whine sure is louder without the cover.

    I've driven about 15 miles with the overdrive. I'm very happy with it, so far. The 3B is much more hwy friendly now. It held 60mph up a slight grade and had power to accelerate from 60 on a flat stretch. I've heard a lot of folks say the f-head wouldn't push 60.

    I definitely need to repair the steering. It is perfectly fine at 45mph. It's like riding a skateboard at 60.
     
    Last edited: Jul 2, 2016
  2. Jul 2, 2016
    47v6

    47v6 junk wrecker! Sponsor

    Washington DC.
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    I like skateboards.:D

    Good job with the overdrive. They go 60 it just sounds like you're killing it. Less killey with an OD though I guess.
     
  3. Jul 3, 2016
    colojeepguy

    colojeepguy Colorado Springs Sponsor

    At the foot of...
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    A Warn overdrive is probably he single best improvement you can make to an early CJ...
     
  4. Jul 3, 2016
    Daryl

    Daryl Sponsor Sponsor

    Bonney Lake, WA
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    Make sure to re check your fluid level in the transfer case now that you have run the overdrive.
     
  5. Jul 3, 2016
    william_cj3b

    william_cj3b Sponsor Sponsor

    Milton, FL
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    I let it fast idle in third o/d with the tcase in neutral for about 20 minutes. Had to add a couple ounces after that. Checked again after driving about 50 miles. No change. Did have to retorque the housing bolts, though.
     
  6. Jul 3, 2016
    Patrick

    Patrick Super Moderator Staff Member Sponsor

    Los Alamos, NM
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    I loved the OD in my old CJ5. Currently, I need two..:)
    The CJ2A does 55 OK, but it spins pretty fast.
    The Tux has 4.88's and 33's. With the Saginaw steering and TH350, shackle reverse, it does well on the highway and if it had OD it would be comfortable at 70MPH+
     
  7. Jul 3, 2016
    Keys5a

    Keys5a Sponsor Sponsor

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    Gearing is a compromise. An F-head with 4:27 axles is a good compromise of road use and trails. Anything lower than 4:27 (4:88, 5:38) really needs an overdrive to drive on the road.
    In my younger days, I was able to top out around 70 mph on flat ground after a couple miles with the above combination. The poor engine was screaming.
    An overdrive gets you the best of both worlds, low gears and a high gear for the road, as well as the splits between.
    Now add something more powerful than an F-head, and an overdrive really shines.
    -Donny
     
  8. Jul 3, 2016
    Dave B

    Dave B Frankenjeep '67

    Northern Minnesota
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