Comparing Timbren and Firestone Vehicle Suspension Enhancement for a 2003 Chevy Avalanche 1500

Question

Question:

How does this part compare to the inflatable variety? I have an 03 Avalanche and typically tow a 20 trailer with 2x3500 lb axles. Which set-up would be best to support towing of this sort? Total trailer weight is typically 5-6000 lbs on scales.

asked by: Marcus P

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Expert Reply:

In terms of capacity, the Timbren Rear Suspension Enhancement System, # TGMRG25C, for a 2003 Chevy Avalanche 1500 has quite a bit more; a total capacity of 6,000 pounds. Compare that to the maximum 1,000 pound capacity of the Firestone Vehicle Suspension, # F4108.

Both systems will offer similar benefits including helping to keep loads level, improved steering and balance, a better ride, and will prevent the vehicle from bottoming out. The Firestone system can be leveled side to side and to accommodate different sized loads. The Timbren system is not inflatable but the more load that is on them, the more resistance they provide.

The Firestone system will require either inflating the air springs at a communal air compressor or you can install one on the truck using the Firestone Level Command II, # F2158, or the Firestone Dual Electric Air Command, # F2178.

If you plan on carrying loads in the truck bed while towing and/or many different sized loads, it may be more beneficial to have the versatility of the Firestone system. If you primarily tow the 20 foot 5,000 to 6,000 pound trailer, the Timbren system would be the way to go.

I have included links to the installation details below for all of the parts referenced along with some FAQ articles with a lot of helpful information.

expert reply by: Michael H

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Answer 1

For your 2018 Cadillac Escalade the Timbren Rear Suspension Enhancement System #TGMRYS4 will work great. These jounce-style springs are confirmed to fit your vehicle and will simply replace the factory bump stop on the frame to provide additional…

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Answer 2

What I recommend is going with the Timbren vehicle suspension #TGMRYS4 (2WD or 4WD)because the hollow rubber springs sit above the axle and they are easy to install. It will also be compatible with your auto-leveling system. Also, the Timbren…

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Answer 3

I spoke with my contact over at Timbren about helper springs #TGMRYS4. The overall height of the whole assembly is 4-3/4 inches. The spring by itself is 3-3/4 inches. You'll want an inch to an inch and a half of space between the frame/axle and…

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Answer 4

It is not recommended to use any type of suspension enhancement when using a weight distribution system. The two systems will work against each other and would provide an unsafe, unpredictable ride quality. Your best option would be to make sure the…

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Answer 5

We sure do! For the rear axle of your 2018 Cadillac Escalade I recommend the Timbren Rear Suspension Enhancement System #TGMRYS4. These are confirmed to fit your vehicle and will simply replace the factory bump stops on the frame to provide…

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Answer 6

For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle…

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Answer 7

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 8

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 9

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 10

Yes we do have a set of Timbrens that fit your 2024 Toyota Tundra with the part #T45MR. These can give you up to an additional 6,000 lbs of suspension support.

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Answer 11

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 12

The correct Roadactive kit that fits your 2023 Ford F-150 is the part #RAS3611-YHD. I really like the RAS kits as they basically don't have any downsides. You get the adjustable support, an easy install, no maintenance, and actually improves…

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