How to shift a 18 spd correctly

Discussion in 'Questions From New Drivers' started by Coffey, Oct 29, 2020.

  1. Coffey

    Coffey Medium Load Member

    May 14, 2019
    Hello I recently been thorough into a 389 with a 18 spd in it can't remember the year but it newer
    So my question is what's the proper way to shift a 18 spd.
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  3. 650cat425

    650cat425 Road Train Member

    Jan 26, 2020
    To help us know where to begin explaining, what transmissions have to operated before? Ever run a 13 speed or a super 10?
  4. Coffey

    Coffey Medium Load Member

    May 14, 2019
    Nope only a 10 and this 18 for this week so far
  5. cjb logistics

    cjb logistics Heavy Load Member

    Aug 13, 2016
    Liberal Ks
    There are a few youtube videos on the web. If pull up one even for a 13, it will be about the same.
    15 on the dash, basic same principles.

    Oh I like a 15 over!
  6. D.Tibbitt

    D.Tibbitt Road Train Member

    Apr 26, 2013
    Gettin' down westbound
    Just shift it like an 8 speed and each gear can be cut in half. Low and high. Nothing to it.
  7. motocross25

    motocross25 Road Train Member

    Sep 23, 2010
    Overland Park, KS
    Depending on empty or loaded I start in 2nd or 3rd low. Work up to 4th, flip the range selector, to the 5 hole, then 6 obviously, and at 7 I then split that up, hit the splitter back down for 8th, then split up for the big sprocket and let er rip. Idk if that’s the answer you’re lookin for as far as “correctly or proper”, but that’s how I do it. You play around with your own technique you’ll get it down what’s comfortable to you, and your truck.
    Coffey, truckguy391 and cjb logistics Thank this.
  8. Michael 247

    Michael 247 Medium Load Member

    Nov 20, 2017
    Drive it Like a 9 speed until it's in 9th gear...Then flip the little lever on the left forward and push the clutch in 2 or 3 inches ...
    Coffey Thanks this.
  9. meechyaboy

    meechyaboy Medium Load Member

    Oct 4, 2018
    H pattern 1234-5678... driving it like that there’ll be about a 400-500 rpm drop between gears. 18 speed each gear can be split... you don’t need to worry about splitting 1234 unless heavy heavy. And only need to split 5678 if loaded but you’ll get a feel for that when driving and when you’ll need to. When splitting there’s only about a 200-300 rpm drop.. to split to the high side of a gear while on the throttle push the button forward let off the throttle then get back on it. To split to to low side of a gear(downshift) same process except you won’t be on the throttle to start. Low rpms slide the button back then back on throttle. If you are loaded and splitting up the gears, when you go to next gear you want enter on the low side(button back) cause shifting from let’s say 5h to 6h is essentially shifting a whole gear. If splitting you’d want 5l to 5h then 6l to 6h and yada yada yada...downshifting is gonna be fun till you figure out what the truck likes
    D.Tibbitt, Dino soar, Lonesome and 2 others Thank this.
  10. Judge

    Judge Road Train Member

    Mar 19, 2014
    Newport, Ar

    Most Simple explanation.
    D.Tibbitt, Dino soar, Lonesome and 3 others Thank this.
  11. Dale thompson

    Dale thompson Road Train Member

    Nov 20, 2013
    commerce twp,mi
    @Coffey don’t let overthinking paralyze you. Manual transmission is a manual transmission. Disengage match rpms for next gear engage.
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