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

Weight on rear axle

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Cnasianfire, Nov 26, 2019.

  1. Nov 26, 2019 at 4:26 PM
    #1
    Cnasianfire

    Cnasianfire [OP] Well-Known Member

    Joined:
    Apr 16, 2017
    Member:
    #216411
    Messages:
    506
    Gender:
    Male
    First Name:
    Charles
    Wilmington, NC
    Vehicle:
    2015 Tacoma TRD off road DCSB
    BFG KO2 285/75/16 ~2" lift (5100s and block)
    What is the weight on a rear axle when truck is unloaded? 2015 offroad.
     
  2. Nov 26, 2019 at 6:09 PM
    #2
    Marshall R

    Marshall R Well-Known Member

    Joined:
    May 28, 2015
    Member:
    #156224
    Messages:
    4,870
    Gender:
    Male
    First Name:
    Marshall
    Vehicle:
    07 White TRD double cab
    none
    You're going to have to take it to some scales and weigh it. Why do you want to know?
     
  3. Nov 26, 2019 at 7:00 PM
    #3
    Cnasianfire

    Cnasianfire [OP] Well-Known Member

    Joined:
    Apr 16, 2017
    Member:
    #216411
    Messages:
    506
    Gender:
    Male
    First Name:
    Charles
    Wilmington, NC
    Vehicle:
    2015 Tacoma TRD off road DCSB
    BFG KO2 285/75/16 ~2" lift (5100s and block)
    I was trying to figured out how much more air I needed in tires with hauling travel trailer. I think it is like 1900lbs
     
  4. Nov 27, 2019 at 4:00 AM
    #4
    muddog321

    muddog321 Well-Known Member

    Joined:
    Dec 22, 2009
    Member:
    #27973
    Messages:
    1,136
    Gender:
    Male
    FL
    Vehicle:
    09 Tacoma DCSB 4wd TRD Off-Road w/e-locker Pyrite Mica
    TW 1-piece driveshaft with 1310 u-joints All Pro and Budbuilt skid plates OME Dakar rear springs 3" with 5100 5100 front set at 1.75" (3rd groove up) with stock springs Falken Wildpeak A/T3W 265/70R16 2018 TRD Offroad wheels 16x7J with +25mm offset Powerstop rotors with Z36 pads and rebuilt with OEM caliper kit Complete rebuilt rear brakes drums, shoes, springs, wheel cylinders Rebuilt rear diff with Yukon 3.73 ring/pinion Denso 130A rebuilt alternator AGM 24F Battery New OEM idlers and tensioner assembly New AC compressor New PS hose and flushed Walker SS Quiet Flow muffler Denso Iridium long life plugs #3421 (SK20HR11) OEM coolant, cap, and thermostat NAPA CV axles and new seals ECGS bushing Rhino front guard Shortened mud flaps Alziria Black Tail Lights Nilight Headlights X-Bull Traction Boards Maaco full single stage paint job 2023 Nat CV to Knuckle seals 710573 New SKF wheel bearings/hubs BR930978 New Moog stabilizer links K80946 & 948 New MOOG K80819 Suspension Stabilizer Bar Bushing 28mm New Dorman rear wheel bearings using complete axles 926-139 & 140 New Radiator support bushings Dorman 924-267 (front body mounts)
    Depends on tire - P, C, E type but 1900 lbs is nothing if you have tow package.
    I have P and always run 35 psi empty (have shell) or towing 3500 lb boat (just plain factory hitch 2" ball) or when had 5500 lb trailer with equalizer on hitch 2 5/16 ball.
    Rear suspension is key and OME Dakars so rear does not squat down on stops like factory junk did.

    Weigh as stated above if you really want to know.
    Truck scales are segmented so you can put Tacoma on one and trailer on other unhooked to see each as every weigh ticket costs you but you get all segments for single price weigh.
    If you want tongue weight and its a 3 segment scale Tacoma on 1, trailer tongue with wheel down on 2, trailer on 3. You can see each and add segment weights as you wish.

    Remember GVWR incudes all people, bed payload, gas, and towed item if you get into heavier tows.
     
    lynyrd3 likes this.
  5. Nov 27, 2019 at 4:41 AM
    #5
    Cnasianfire

    Cnasianfire [OP] Well-Known Member

    Joined:
    Apr 16, 2017
    Member:
    #216411
    Messages:
    506
    Gender:
    Male
    First Name:
    Charles
    Wilmington, NC
    Vehicle:
    2015 Tacoma TRD off road DCSB
    BFG KO2 285/75/16 ~2" lift (5100s and block)
    Yeah, I have BFG KO2s (E Rated). Towing a 3k Travel Trailer. From the load charts I found, looks like I need to go up to about 50psi.

    My truck never squats as long as I have the WD hitch on. Even when I don't, it doesn't squat hardly at all even with the trailer.
     
  6. Nov 27, 2019 at 8:18 AM
    #6
    Marshall R

    Marshall R Well-Known Member

    Joined:
    May 28, 2015
    Member:
    #156224
    Messages:
    4,870
    Gender:
    Male
    First Name:
    Marshall
    Vehicle:
    07 White TRD double cab
    none
    50 PSI might be OK on a heavily loaded 1/2 ton truck, but is too much for a Tacoma. When I ran P series tires the door sticker says 29-32 PSI for normal driving. The tire stamp says 44 PSI for heavy loads. I ran 38-40 PSI all the time. That way I didn't need to air up when throwing some weight in the bed or towing. Plus fuel mileage was typically 1-2 mpg better. I was still able to get 50,000+ miles out of a set of tires.

    But E series tires need LESS air pressure to accomplish the same thing because it is a stiffer tire. Now that I have E rated tires on my Tacoma I keep them at 35 PSI and they will carry more weight than the P series tires at 44 PSI. Certainly far more than the truck is rated for. 50 PSI in a lightweight Tacoma will beat you up and isn't needed

    A 3000 lb trailer is going to place less than 400 lbs on your truck. E rated tires are designed for 3/4 ton trucks that might have 3000 lbs in the bed alone.
     
  7. Nov 27, 2019 at 8:22 AM
    #7
    Hobbs

    Hobbs Anti-Lander from way back…

    Joined:
    Mar 20, 2016
    Member:
    #181838
    Messages:
    22,351
    Yep…
    Vehicle:
    Rock Bangen', Desert Tamin', Gold Findin' Machine!
    The max load/max inflation can be found on the side of the tire.
     
  8. Nov 27, 2019 at 8:23 AM
    #8
    Cnasianfire

    Cnasianfire [OP] Well-Known Member

    Joined:
    Apr 16, 2017
    Member:
    #216411
    Messages:
    506
    Gender:
    Male
    First Name:
    Charles
    Wilmington, NC
    Vehicle:
    2015 Tacoma TRD off road DCSB
    BFG KO2 285/75/16 ~2" lift (5100s and block)
    I would never run the max on my tacoma.

    And i didn't mean 50, I meant 40, sorry.
     
    Hobbs[QUOTED] likes this.
  9. Nov 27, 2019 at 8:55 AM
    #9
    crx7

    crx7 1997 FZJ80 Triple Locked

    Joined:
    Apr 9, 2017
    Member:
    #215836
    Messages:
    280
    Gender:
    Male
    Grand Junction Colorado
    This only makes sense if you're hauling trailers every other day. If you're hauling a travel trailer then I would increase pressures for your trip and decrease when you're done. This is what I do.

    A 3000 lb trailer is going to place less than 400 lbs on your truck. E rated tires are designed for 3/4 ton trucks that might have 3000 lbs in the bed alone.[/QUOTE]

    Still you're applying this in the situation that he is going to run the same pressures all the time for different loads, which doesn't apply to travel trailers. You use them for vacation usually, intermittently, and he's not going to run towing pressures all the time, that would be uncomfortable.

    Understand that yes, it depends on the tire and the load. When I had a heavy load of rock in the back I pumped my E rated tires to 55, because otherwise they were squatting under the load. When I'm towing I have my C rated tires at 40 and the trailer tires at 50. Looking at the tire helps as well. Running 32 psi with my 2300 lb trailer and a 150lb load in the back of the truck, my tires in the rear were squatting. If there is significant deformation of the tire when rolling then the tire overheats and wears out or fails prematurely. You get poor mileage and slow acceleration as well. Pumping them up to 40 I got good mileage and handling. They are rated at 44 psi cold, so I have some room.

    Someone also said never pump up to the rated PSI. Why not? This is the pressure it is rated to handle max load at. If you're hauling max load or close to it then why not pump it to the rated pressure.

    E series: these are not just for heavy loads. The increased sidewall strength can help prevent sidewall punctures when off roading on rocky terrain.
     
  10. Nov 27, 2019 at 9:45 AM
    #10
    gotoman1969

    gotoman1969 Well-Known Member

    Joined:
    May 30, 2018
    Member:
    #254966
    Messages:
    6,986
    Gender:
    Male
    First Name:
    Steve
    San Antonio, TX United States
    Vehicle:
    2015 Silver Tacoma PreRunner
    3" ToyTec coilovers, JBA UCA's, Bilstein 5100's
    Up it by 10lbs per tire and drive it, quit turning this into a science project.
     
  11. Nov 27, 2019 at 9:56 AM
    #11
    Cnasianfire

    Cnasianfire [OP] Well-Known Member

    Joined:
    Apr 16, 2017
    Member:
    #216411
    Messages:
    506
    Gender:
    Male
    First Name:
    Charles
    Wilmington, NC
    Vehicle:
    2015 Tacoma TRD off road DCSB
    BFG KO2 285/75/16 ~2" lift (5100s and block)
    Hahaha, I hear that!

    Normally, I run 34 front, 32 rear. I am at 35 front, 40 rear for towing my trailer trailer (3000lbs). When I unhitch, I am going to go back down to 34-32. I always carry a high capacity air compressor with me because I air down when I go to the beach (which is often).
     

Products Discussed in

To Top