1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Someone please measure stock height driveshaft/pinion angles on 2016+ crew?

Discussion in '3rd Gen. Tacomas (2016+)' started by dal3_gribble, Aug 28, 2019.

  1. Aug 28, 2019 at 12:24 PM
    #1
    dal3_gribble

    dal3_gribble [OP] Well-Known Member

    Joined:
    Apr 14, 2018
    Member:
    #250494
    Messages:
    609
    Vehicle:
    Crew Cab SB TRD Offroad
    I've searched, I can't find it for 3rd gens. I am about to go the dealer and ask them to let me crawl under their truck but I figured I would ask for help here first. We really need stock height driveshaft angle measurements so anyone that lifts the rear knows how to get the driveshaft/pinion angles back to stock angles. This will really help everyone know what angle of shims and carrier bearing drop they need to get rid of vibration after lifting. If you ever lift the back over an inch, you'll probably be dealing with vibrations. There's no sense trying to get the angles right by blindly bolting drops and shims in.

    Folks with extra cabs can do the measurement as well, but I'm not sure they have the 2 piece driveshaft which is the source of all of this vibration. I'm pretty sure SR5/TRD OR/TRD Sport crews will all have similar driveshaft angles.

    Here's what we need. Someone needs to have the harbor freight angle measurement tool (hopefully)

    https://www.harborfreight.com/Digital-Angle-Gauge-63615.html

    63615_I.jpg

    Then follow these steps from a good Gen 2 thread-

    https://www.tacomaworld.com/threads/drive-shaft-vibrations-solved-step-by-step.244535/#post-5856724

    1. Buy yourself an angle finder. I got mine at a local Harbor Freight for around $40. You absolutely cannot, ever, figure this stuff out without one.

    2. Measure your current driveshaft angles. You’ll use (4) points to measure from, to get (3) measurement numbers.

    a. Zero your angle gauge against the back of the transfer case, up to the right (under the truck facing forward) against that nice flat place with the two holes.

    b. Measure your first driveshaft angle by placing the gauge underneath the first driveshaft, keeping clear of any mud, stickers, etc. My gauge is magnetic so I flipped it over and hung it upside down. I messed with it a bit to get it perfectly in line with the driveshaft and perfectly underneath (by perfectly I mean I randomly wiggled it around until it came up with the most consistent number). This is your first measurement of three, write it down somewhere, and represents the angle of the first shaft as it comes out of your transfer case.

    c. Take your next measurement underneath the rear (second half) of your driveshaft, after the carrier bearing. I took mine next to the rear differential, again keeping clear of stickers, weights, etc, and wiggling it until I had a consistent reading. This is your second of three measurements, write it down, and represents the angle of your rear half driveshaft as it relates again to the transfer case.

    d. For the third and final measurement, you’ll need to re-calibrate your angle gauge. On mine, I left the gauge where it was, hanging by its magnets under the rear driveshaft, and pressed and released the Calibrate button a few times until the gauge, when hanging under the rear driveshaft, read zero. Then locate the nice flat area up against your rear axle housing, next to the rear differential case. Make sure it’s fairly free of mud etc. then place your gauge (after zero-ing it out on the rear driveshaft) up against this flat part of your rear axle. I found a nice spot just above the molded line (in red) and next to the diff housing bolts (tip of arrow). This is your third and final measurement, write it down also, and represents the angle at which your rear driveshaft comes out of your rear differential.

    Here's an illustration of the steps.

    driveshaft measurements.jpg

    Someone, please help, it will help the community here I think. The more datapoints, the better!
     
  2. Aug 28, 2019 at 12:30 PM
    #2
    dal3_gribble

    dal3_gribble [OP] Well-Known Member

    Joined:
    Apr 14, 2018
    Member:
    #250494
    Messages:
    609
    Vehicle:
    Crew Cab SB TRD Offroad
    Here are my before/after measurements. Unfortunately I don't have stock height measurements. I got the vibes MUCH, MUCH better, but there is still a little bit.

    Here in the black, you can see the driveshaft angles after adding 1.5" rear add-a-leafs and 1" blocks, the angles, and results. There were pretty bad vibrations from 20-40MPH; enough to really annoy me. Then, in the blue, you can see the angles after 2.5 deg. shims and 2 carrier bearing drop shims (~6mm). It's much better and livable but there are still some vibes there.

    driveshaft measurements-rp.jpg

    I've seen Gen 2 stock measurements; there's about 2-3 degree angle between shafts, and 2-3 degree angle between the second shaft and diff input. So, mine is pretty close to what the Gen 2 stock angles are at this point. Without knowing what Gen 3s measurments were, that's what I targeted. I am thinking the Gen 3s geometry may be different which is why stock angles will help.
     
  3. Aug 28, 2019 at 12:34 PM
    #3
    RushT

    RushT Well-Known Member

    Joined:
    Dec 10, 2017
    Member:
    #238171
    Messages:
    1,598
    Gender:
    Male
    North Texas
    Vehicle:
    Inferno DCSB OffRoad
    I have a magnetic digital and might be able to do this over the weekend... if your timeline allows the delay.

    Stock 2018 OR DCSB
     
    dal3_gribble [OP] likes this.
  4. Aug 28, 2019 at 12:47 PM
    #4
    dal3_gribble

    dal3_gribble [OP] Well-Known Member

    Joined:
    Apr 14, 2018
    Member:
    #250494
    Messages:
    609
    Vehicle:
    Crew Cab SB TRD Offroad
    Also, lifted guys, if you put your measurements here, we'll have one place to start comparing results; we should end up with a pretty good idea of x lift = y adjustment references for everyone.

    Here's a template. Basically we need your setup (lift, corrections in place, and level of vibrations/speeds), and angles. Please update and add new posts with new angles as you make changes too and what those results are.

    driveshaftemplate.jpg
     
  5. Aug 28, 2019 at 2:26 PM
    #5
    littlefish

    littlefish Buzz, your girlfriend...

    Joined:
    Sep 13, 2018
    Member:
    #266147
    Messages:
    371
    Gender:
    Male
    Hudson Valley NY
    Vehicle:
    2016 TRD Off-Road DCSB
    On my phone so I can’t input into the template, but my angles before and after:

    Stock:
    First angle 4.3°
    Second angle: 4.7°
    Diff input: 3.4°

    After with OME medium duty Dakar pack yielding 1.75” (23.75” hub center to fender) of lift:
    First angle: 3.4°
    Second angel: 2.0°
    Diff input: 0.8°

    I did not install any shims. I did however install the CB drop. I can confidently say I have had zero vibes at all with these measurements.
     
    dal3_gribble [OP] likes this.
  6. Aug 28, 2019 at 3:06 PM
    #6
    dal3_gribble

    dal3_gribble [OP] Well-Known Member

    Joined:
    Apr 14, 2018
    Member:
    #250494
    Messages:
    609
    Vehicle:
    Crew Cab SB TRD Offroad
    Thanks! That is different than the second gen. Second gen stock: first angle 5.6° Second angle 3.4° diff input 1.8°. I've been targeting 2nd gen without having a 3rd gen stock reference assuming it would get me close.

    Based on what you posted, it looks like the 3rd gen wants the first/second shaft angles closer together. That explains why the CB drop did it for you and why it didn't work for 2nd gens too well. Excellent!
     
  7. Aug 28, 2019 at 3:15 PM
    #7
    Scott17818

    Scott17818 Well-Known Member

    Joined:
    Oct 29, 2018
    Member:
    #271032
    Messages:
    644
    Gender:
    Male
    First Name:
    Scott
    Midcoast Maine
    Vehicle:
    2016 Tacoma DCSB OR
    yokohama geolanders, tyger soft tonneau, Ditch lights.. more to come
    I have a manual angle finder ill check my 2016 DCSB TRD OR at some point in the next day or so. would like to record it for myself as well.. you may also want to check that your rear end is in line with the output of the driveshaft (hold a straightedge up to it along the driveshaft.)

    compound angles can make vibes in a driveshaft much worse.. I was also of the opinion that because our trucks have no tracbar, or anti wrap bar the pinion angle changes depending on load, speed, and wear and tear on the leafs, and bushings.. just something to think about.
     
  8. Aug 28, 2019 at 3:19 PM
    #8
    RushT

    RushT Well-Known Member

    Joined:
    Dec 10, 2017
    Member:
    #238171
    Messages:
    1,598
    Gender:
    Male
    North Texas
    Vehicle:
    Inferno DCSB OffRoad
    Lacking an angle finder, there are free iPhone apps. Just need to measure all 4 and take the primary as a reference and do the math. Easy peasy.
     
  9. Aug 28, 2019 at 3:20 PM
    #9
    KY_Rob

    KY_Rob Well-Known Member

    Joined:
    Apr 11, 2019
    Member:
    #289780
    Messages:
    464
    Gender:
    Male
    First Name:
    Rob
    Northern Kentucky
    Vehicle:
    2018 DCSB TRD-OR
    Tinted front windows WeatherTech Vent Shades Hondo Garage ARFCOM Radio Knobs Perfect Squeeze Phone Mount Taco Garage DMM Coverking CR-Neoprene seat covers OEM Matte Black Badging Covers OEM TRD Pro grille 4x white grille lights Black textured rear bumpershellz Total Chaos Bed Stiffeners A/C Drain Mod MESO Ultimate Turn Signals MESO Extended Fuse Box Cover MESO Ultimate Map Lights MESO Ultimate Dome Light MESO Gasshole MESO Minimalist Key Fob OEM TRD Pro Rear Lights OEM TRD Pro Skid Plate OEM Bed Mat Lomax Hard Tri-Fold Tonneau MESO Stage 2 Total Tails MESO Puddle Pods Kicker speakers throughout (Subaru tweeters)
    I didn’t follow your directions exactly, and only took 2 measurements (fore and aft of the carrier bearing), using the driveway underneath the driveshaft as 0° reference.

    Fore angle: 7.45°
    Aft angle: 5.90°
    Angle difference: 1.55°
     
  10. Sep 11, 2019 at 9:53 PM
    #10
    Stagarm

    Stagarm Well-Known Member

    Joined:
    Feb 16, 2019
    Member:
    #283297
    Messages:
    67
    Gender:
    Male
    First Name:
    Trevor
    Vehicle:
    White 13’ dubcab 4x4
    Me behind the wheel
    Used digital angle finder from Lowe’s.
    Measurements taking when I was fight to fix my vibration after installing HD Dakar’s.

    My 2013 Tacoma when it was stock.
    TC- 2.3* down
    1st shaft 7.9* down
    2nd shaft 5.7* down
    Pinion 5.2* up

    Drove over to my buddies house who has a 2015 4wd Tacoma sport. Bone stock.
    Measured his driveline angles. Almost the same. He says he has not vibes.
    TC- 2.5* down
    1st shaft 8.0* down
    2nd shaft 5.5* down
    Pinion 5* up

    Drove over to my parents house and measured their 2007 4wd Tacoma bone stock. Again another Tacoma with no vibes.
    TC- 2.9* down
    1st shaft 8.0* down
    2nd shaft 5.5* down
    Pinion 5* up

    All three trucks with stockrearsuspension. All measurements with a Johnson level magnetic digital angle locator. Took measurements off the flat part of the Tc outputshaft, flat part of the pinion output shaft.
     
  11. Sep 11, 2019 at 9:56 PM
    #11
    Stagarm

    Stagarm Well-Known Member

    Joined:
    Feb 16, 2019
    Member:
    #283297
    Messages:
    67
    Gender:
    Male
    First Name:
    Trevor
    Vehicle:
    White 13’ dubcab 4x4
    Me behind the wheel
    Measure both sides of the joint. Add if opposite angles. subtract is similar.
     

Products Discussed in

To Top