SumoSprings or Timbren Suspension Enhancement For a 2017 Toyota Tacoma Pulling Car Hauler Trailer

Question

Question:

I have a 2017 Tacoma TRD Sport and occasionally 2-3 times /year tow an 18 ft car hauler which would be near the Tacos towing capacity. With 90 of my driving is with an unloaded bed, should I go with the Sumos or Timbrens?

asked by: Gary

1

Helpful Expert Reply:

I recommend the Timbren Rear Suspension Enhancement System # TTORTUN4 over the SumoSprings Solo Custom Helper Springs # SSR-612-47 for your 2017 Toyota Tacoma TRD Sport. The Timbrens have a much higher weight capacity at 6,000lbs versus the SumoSprings at 1,000lbs. This will give you a better ride level and stabilization when you are towing your car hauler.

A Equal-i-zer Weight Distribution System # EQ37100ET may be a better option if you only need the suspension enhancement when you are towing. This will also give you a sway control when you are using the trailer, making it safer when you drive in windy conditions.

expert reply by: Bud M

1

Andy R.

6/20/2025

I just got the timbrens for the rear of my tacoma and im debating which brand to go with on the front. 2018 trd pro with eibach springs in front and icon rxt leaf packs rear. I carry 600lbs with camper shell, rack, tent, awning, shower, bedslide, fridge, etc. I also tow a 16' box trailer which is went I went with timbren in the rear. What would you recommend?

Robin H.

6/22/2025

@AndyR for the front I would get the SumoSprings # SS84PV. These will be more forgiving when it comes to ride quality but still give you extra support. With the Timbren in the rear, and most of the weight back there with the camper, I don't think you need Timbrens in the front as well.

Answer 1

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 5

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 6

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 7

Hey Doug! The Firestone Ride-Rite Air Helper Springs #F35FV are the right kit for your 2026 Ford F-350 FX4 dually. However, you will need to measure to be sure it fits. The distance from the top of your rear axle to the top of the jounce bump stop…

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Answer 8

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 9

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 10

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 11

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6 inch whereas the 225/75-15 fits widths that are 5 inch to 6-1/2 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 12

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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SumoSprings or Timbren Suspension Enhancement For a 2017 Toyota Tacoma Pulling Car Hauler Trailer

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