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What suspension changes for towing?

Discussion in 'Towing & Hauling' started by grandcru, Dec 17, 2019.

  1. Dec 17, 2019 at 4:39 AM
    #1
    grandcru

    grandcru [OP] New Member

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    Dealership decal delete mod
    Scenario:
    I have a 2020 Crewmax Pro. I have a boat that I will pull during the summers, not all the time, but a few times. its 28 ft, and with the trailer it weighs about 9000lbs. double axle, but has decent tongue weight. I do not want the back up my tundra to sag substantially. (pulled this last year with my 03 tundra, sagged a bit but had 5100s and progressive add a leaf) I also do not want to substantially change the suspension and I really like the everyday ride of the pro suspension. I do not mind a small amount of rake when not under weight.

    Question: what do you recommend? just shackles?

    Thank you!
     
    Coachbuilder1 likes this.
  2. Dec 17, 2019 at 4:49 AM
    #2
    SprinterAE86

    SprinterAE86 New Member

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    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    Firestone air bags.
     
  3. Dec 17, 2019 at 7:55 AM
    #3
    JohnLakeman

    JohnLakeman Burning Internet Daylight

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    I have no input on suspension tips, but towing 9K with 2019+, I would get an Ultra-Gauge Blue, Ultra-gauge MX, or a Scangauge and set it up for reading transmission fluid temperatures as MGauges (Ultra-gauge) or X-gauges (Scangauge). Toyota deleted the tow package auxiliary cooler in 2019.

    More frequent fluid service goes without saying.
     
  4. Dec 23, 2019 at 3:09 PM
    #4
    Coachbuilder1

    Coachbuilder1 Industry Leader Vendor

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    Salt Lake City UT
    2007 SR5 5.7 Katzkin, LED lighting through out, LED door handles, Color Matched handles & grill surround, CST 3.5" Spindles OME 614 Full Suspension, Coachbuilder +3" Shackles by Ekstrom Design, BHLM,35"/12.5"/20 Nitto Trail Grapplers,BMF SOTA death metal black finish 20"x10" -19 offset.
    With applications like yours we have set the PROs up quite a few different ways but with the valving being so soft it would pay to add some lift via shackles and then can use a Air bag ( Firestone #2445 ) for when your towing. Id be happy go over in better detail if you'd like?
    David 801-635-4872

    https://www.shopcoachbuilder.com/co...ilder-2-shackles-provides-1-25-of-actual-lift
    https://www.shopcoachbuilder.com/co...ilder-airbag-spacer-kit-actual-thickness-1-50
    https://www.amazon.com/Firestone-W2...7142981&sprefix=Firestone+2445,aps,184&sr=8-2
     
    Last edited: Dec 23, 2019
    DM 2018 Tundra likes this.
  5. Dec 29, 2019 at 2:07 PM
    #5
    plumber802

    plumber802 New Member

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    Firestone air bags are your best bang for the buck.
     
    Bigboitundra and Rex Kramer like this.
  6. Dec 29, 2019 at 2:12 PM
    #6
    TRDProLife

    TRDProLife LETS GO BLUES

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    Window Tint, ICI Magnum Steps, firestone spring helpers for towing, 295/70R18 Atturo Trsil blade X/T's
    I also tow a 28ft double axle trailer with my pro. I am running Firestone airbags and coachbuilder shackles and have no problems.
    I almost dont even need much air in the bags with the +3s.
     
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  7. Dec 29, 2019 at 2:49 PM
    #7
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Rex Kramer likes this.
  8. Dec 29, 2019 at 2:51 PM
    #8
    timsp8

    timsp8 Member

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    Airlift airbags with on board air. Convenient and they have the internal bumper.
     
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  9. Dec 30, 2019 at 7:34 PM
    #9
    Ruggybuggy

    Ruggybuggy New Member

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    Sumo springs. It will ride as before and only come into play when there is weight on the truck. Also super easy to install, nothing to maintain and cheap.
     
  10. Dec 30, 2019 at 7:46 PM
    #10
    HappyGilmore

    HappyGilmore Ex 1st Gen Member

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    28 ft, 9k lbs boat? Nice! Let's see this beast!:eek2: I'm amazed you towed it with your 03.

    Also vote air bags. :thumbsup:
     
    Bigboitundra likes this.
  11. Jan 6, 2020 at 12:52 AM
    #11
    astro-jason

    astro-jason New Member

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    I tow a 6500 lb. Travel Trailer with my 2016 SR5 4X4, Had the Timbrens installed didnt like the feel of riding on the bump stops. Removed those and installed the Super Springs SSA4. Night and day difference, wish I would of switched sooner. The installation was easy and no maintenance needs to be done. It did raise the rear a couple of inches, but not too bad just a little rake.

    -Jason
     
  12. Jan 6, 2020 at 4:57 AM
    #12
    Rex Kramer

    Rex Kramer 'Screaming Buffalo'

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    ^^^^^^^
    This, and maybe a weight distribution hitch.
     
  13. Jan 6, 2020 at 5:03 AM
    #13
    Rebel Tundra Man

    Rebel Tundra Man New Member

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    4" RCX Lift, 20x10 Fuel Coupler's, 35x12.50x20 Nitto Ridge Grappler's, Color Match Front End, LED Bulbs, RCX Tube Steps, Green LED Underglow
    I have a 2" AAL in the rear but I also have a 4" front lift. I don't know what tongue weight is but I had my car hauler and a chevy duramax 2500 on it not too long ago and it was too much for it. The truck couldn't hold the weight without the trailer dragging the ground.
     
  14. Jan 6, 2020 at 5:13 AM
    #14
    stewtopia

    stewtopia 4RunningTundra

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    I use Boss airbags with on-board compressor. I also have the Pro suspension on (never should have). Keep in mind it is hard to have the best of both worlds. Your suspension is soft for a reason. My ride is a little more bouncier now with the airbags, but towing and hauling is way better. Trade off.
     
  15. Jan 6, 2020 at 5:49 AM
    #15
    specter208

    specter208 New Member

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    Weight distribution hitch. Air bags are proven to be a cosmetic fix only. WDH will reduce sag plus balance weight of truck and truck for improved ride quality and safety.
     
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  16. Jan 6, 2020 at 6:30 AM
    #16
    TruckyTruck

    TruckyTruck Dumbest Username

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    I don't have a pro, but use Alcan springs and +2 shackles. When I tow my camper I use an equalizer weight distribution hitch. Keeps my truck level.
     
  17. Feb 1, 2020 at 1:35 PM
    #17
    BarcelonaSX

    BarcelonaSX New Member

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    Bilstein 6112 front coilovers @2.5”. Bilstein 5100 rear shocks with toytec shackles @1”. 20x9. Xd grenade wheels with 295/60/20 ridge grapplers. Tinted windows. Gibson single side dual exhaust.
    I’m running toytec shackles and am considering some bags for when I tow or load up. Did the bags work right out of the box even though you had done a shackle lift?
     
  18. Feb 1, 2020 at 3:58 PM
    #18
    timsp8

    timsp8 Member

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    I have coachbuilder +2 shackles and airlift airbags. Mine fit right out of the box. Didn’t need any extension. I do have the daystar cradles though.
     
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  19. Feb 2, 2020 at 5:55 AM
    #19
    TRDProLife

    TRDProLife LETS GO BLUES

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    Window Tint, ICI Magnum Steps, firestone spring helpers for towing, 295/70R18 Atturo Trsil blade X/T's

    Coachbuilder sells spacers for them. You will need them for +3 shackles.
     
  20. Feb 3, 2020 at 4:37 AM
    #20
    Buckaroo

    Buckaroo New Member

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    In addition to WDH, recently installed Roadmaster Active Suspension to help tighten up the rear end on my 2017 DC Limited towing 32 ft, 8000 lb+ TT. Still evaluating performance but definitely helps with porpoising over bumps and did not change the ride when not towing.

    Tundra & GD 2670MK.jpg
     
    Last edited: Feb 3, 2020
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  21. Feb 3, 2020 at 10:36 AM
    #21
    NewTundraGuy2020

    NewTundraGuy2020 New Member

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    In progress...
    I bet you’re over 9,000 pounds. Put it on scale sometime, you’d be surprised. (I speak from experience)

    Airbags, LT tires and good shocks will make a big difference. But, that heavy load will take a toll on a half ton truck. Any half ton truck. Be prepared to go through brakes. Upgrade them when they wear out.

    And as you probably know already, a weight distributing hitch is not a good idea for a boat trailer. Especially if it’s an aluminum one.

    Lastly, make sure your trailer braking system is 100%. It’s not so much what you can tow, but what you can STOP.

    Be safe. :)
     
    Creatures 1982 likes this.
  22. Feb 3, 2020 at 12:08 PM
    #22
    Ruggybuggy

    Ruggybuggy New Member

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    Nice trailer. I like seeing the max tow that the Tundra can handle. Helps me plan for my next trailer.
     
  23. Feb 3, 2020 at 1:45 PM
    #23
    Buckaroo

    Buckaroo New Member

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    Thanks - quite a step up from the pop-up I used to haul with my 2000 T4R back in the day. The UVW on this TT is 7014 lbs but the GVWR is 8495 lbs. My CAT scale result, lightly loaded for camping, was 7400 lbs with propane but fresh, gray & black tanks empty which is how I roll. Total weight of the TT is not the problem...the Tundra is rated for 9100 lbs. The limiting factor is payload which includes the tongue weight. You have to be careful what you put in the truck but the TT tows great properly loaded. Rig is very stable with the WDH (Equalizer 1,000/10,000) and even better with the Roadmaster Active Suspension. Lots of folks towing more but this is max for me.
     
    Last edited: Feb 3, 2020
  24. Feb 3, 2020 at 1:52 PM
    #24
    Ruggybuggy

    Ruggybuggy New Member

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    What was your tongue weight. I'm good for 1330lbs payload and with me, the wife a generator and accessories I have about 700lbs left. My current trailer has about 550lbs of tongue and is only 24' long.
     
  25. Feb 3, 2020 at 4:00 PM
    #25
    Buckaroo

    Buckaroo New Member

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    It's a 2020 Grand Design Imagine 2670MK. The manufacturer literature says it's 642 lbs. The VIN specific build sheet supposedly reflecting actual weight says it's 726 lbs. The free standing tongue weight that I measured using the bathroom scale method is 900 lbs. Per my CAT scale measurement, the weight transferred to the truck with the WDH in place is 680 lbs. I am loading for a longer trip and will do another CAT scale reading.
     
    Last edited: Feb 3, 2020
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  26. Feb 3, 2020 at 8:39 PM
    #26
    cforman61

    cforman61 Pupper

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    Let me know what your next CAT scale weights are. We have the same trailer that we tow with a 2019 Crewmax with the tow package. I have a tongue weight scale and we are right at 910 lbs. with full propane and empty tanks except for about 5 gallons of water I keep for an emergency.
     
  27. Feb 6, 2020 at 4:41 AM
    #27
    Bad Cow

    Bad Cow GOD Bless The USA

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    I drive a 2019 PRO, and tow a 20FT Center Console Bay Boat. The boat is not real heavy as it only pushes the rear end down about an inch. Having a hard time trying to decide the best way to lift the rear by 1-2 inches. Seems to me the PRO's sit VERY level with almost no rake. I like a truck to sit a bit higher in the rear. Thought about the SumoSprings, which would stop the sag once the load is on the truck. Don't want anything that will affect the driveline. The SumoSprings will not lift the truck, they just prevent it from sagging. I had them on my 2016 Tacoma TRDOR and loved them. Still debating on which way to go.

    IMG_E5793.jpg
     
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  28. Feb 6, 2020 at 4:54 AM
    #28
    zombie

    zombie Master at Something

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    I would add an extra Transmission cooler. Biggest you can get, why not. 3 is better than 2.
     
  29. Feb 6, 2020 at 5:14 AM
    #29
    spicychickentundie

    spicychickentundie New Member

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    WDH are not really a thing on boat trailers.

    If OP is only trailering the boat a few times a year he'll probably be okay without any modifications. He will just need to take it easy and leave plenty of room in front of him for stopping. Evasive maneuvers and stopping quickly will be the biggest issue. If I had to say any mod it would be the TRD RSB, but that beneficial whether you're towing or not. Towing near the limit of the truck is not fun. My boat was 80-90% of the max towing capacity of my Tacoma, but only 50-60% of my Tundra's max capacity, depending on how much fuel is in the boat. OP definitely needs to make sure the trailer is set up correctly so there is enough tongue weight and be aware that the location of the tanks and amount of fuel in the boat will have an affect on weight distribution.

    In for pics of OP's boat.
     
  30. Feb 6, 2020 at 5:16 AM
    #30
    spicychickentundie

    spicychickentundie New Member

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    I wouldn't lift the rear. That looks fine. Maybe a little too much tongue weight for that setup, but the truck doesn't look like it is struggling. For a boat that size I'd roll like that.
     
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