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4wd Is Broken

Discussion in 'Early CJ5 and CJ6 Tech' started by jeepstar, Oct 23, 2016.

  1. Focker

    Focker That's a terrible idea...What time? Staff Member

    Here's where mine is located. I haven't ran a tube yet, but you basically extend the vent by using rubber hose.
    [​IMG]

    [​IMG]
     
  2. jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Arent you worried about sticks and stuff snagging it?
     
  3. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    No more than I worry about my brake lines, and with much less consequence.
     
  4. Focker

    Focker That's a terrible idea...What time? Staff Member

    Careful routing along horizontal and vertical parts should help avoid most snags.
     
  5. Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    on mine
    front vent up to top of radiator
    rear vent as high as I could go in fender well
    since replacing transmission vents still in stock location . just wasn't high on to do things
     
  6. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    No picture, but you thread in to the housing and insert a hose barb. Then you mount a fuel filter on the fender high up somewhere on the body and run a hose from the barb fitting to the filter. The filter keeps assorted crud out of the hose (bugs, mud, splash, whatever), and lets air pass in/out of the vent. Jeep started doing the same thing in the '70s, and they used a little plastic deally instead of the filter. Plastic Vent Cap
     
  7. jzeber

    jzeber Well-Known Member 2022 Sponsor

    I can get you a pic of the filter on the firewall and at the vent.
     
  8. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    I ran a vent to both axles & xfer case.

    H.
     
  9. jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Where would my t98 vent be?
     
  10. Glenn

    Glenn Kinda grumpy old man Staff Member

    On top of the transfer case there is a vent. I don't know about the T-98 but the T-90 vents into the transfer case so one extended vent takes care of both. Mentioning this just to remind you about the transfer case.
     
  11. jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    my bad....meant transfer case..
     
  12. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    I'd presume there is a seal between the T-98 and Dana 18, just like the T-18 apps. I suspect the transmission vents through the shift top, around the shift stalk. Not much you can do about that. I know that rain water can go down the shift stalk into the transmission, if there's no shift boot to block it.
     
  13. nickmil

    nickmil In mothballs.

    I don't remember on the T-98 but most T-18's actually have a vent in the shifter top similar to what is on the axles. Once can be easily added also. Some do vent through the shifter stick and associated hardware.
     
  14. jeepermc

    jeepermc Active Member

  15. Danefraz

    Danefraz Well-Known Member 2023 Sponsor 2022 Sponsor

    The vent is just left of the reverse sensor I added to the T-98. You may need to rotate your monitor :)
    [​IMG]

    The transfer case vent is in this picture behind the levers...
    [​IMG]
     
  16. jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    So, its november 1st, and 70 in wisconsin. i slapped some rtv fluid on my diff surface after i cleaned all the metal parts and oil/water mix out of the diff and slapped the cover back on. im off for some 2WD adventures!

    My questions are:
    1. do i need a gasket for the diff cover if im using rtv gasket maker?

    2. When i go to order my spider gears, are they all the same? just order a set for a D27?
     
  17. nickmil

    nickmil In mothballs.

    Jeep and Scout pinion and side gears with 10 spline axles are the same. Cannot answer for Volvo or other oddballs.
     
  18. jzeber

    jzeber Well-Known Member 2022 Sponsor

    I only use RTV, works great. Sorry no answer for question #2.
     
  19. eti engineer

    eti engineer Member

    And trying to find the shift boot for the T-98 is impossible. It has a longer throw than the T-90 and the boot rips. I am trying to find a big rig type bellows replacement for the one I have now. When I do, I will let everyone know what I found.
     
    Hellion likes this.
  20. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    I am running a bellows style boot on my T-18 in my 3B from a Volvo 240. The opening is a little wider than the shifter, but it is really soft rubber; a hose clamp or even a zip tie would probably be enough to seal it. The base of the boot is square, so you might prefer to build your floor around it. Just an option.

    New MTC Shift Boot Volvo 244 245 264 85 82 81 80 242 DL GLE 240 265 262 93 1985 - Euro Port Parts
     
    eti engineer likes this.