Timbren Suspension Enhancement Recommendation on 2014 GMC Sierra 1500

Question

Question:

Greetings The dealer that sold me my travel trailer recommended the Timbren SES for my 2014 GMC Sierra 1500. I am considering purchasing part number TGMRCK15S-M2 from eTrailer. Is this the correct part for my Sierra? Also, I will be towing a trailer that has a dry weight of ~4500 pounds, and a dry hitch weight of 520 pounds. Would you recommend for my towing needs the GMRCK15S 6000-lb over the TGMCK15S-M2 3600-lb? I am leaning towards the 3600-lb SES, as I dont want to make it stiffer than necessary. Best Regards

asked by: Jim G

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Expert Reply:

Suspension enhancement for your 2014 GMC Sierra 1500 is a good idea and will provide a more level and comfortable ride when towing your new travel trailer. According to Timbren, the Rear Suspension Kit part # TGMRCK15S-M2 mentioned in your question is a special kit designed more for lowed trucks.

I recommend the 6,000lb Timbren # TGMRCK15S system as this is a confirmed fit for your vehicle and will give you plenty of room to work with at the listed weight capacity.

I have included a helpful FAQ article about the Timbren Suspension Enhancement Systems for your review.

expert reply by: Chris R

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Answer 1

Since you have a wheelbase/axle spacing of 38 inches the correct hanger kit for slipper springs would be the part #HAP-105-205-01. And then for a 7k trailer axle the u-bolt kit you'd want would be the part #APUBR-8. I attached the diagram to use…

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Answer 2

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 3

The best option we offer for your dump trailer is the Erickson Mesh Tarp and Truck Bed Cover part #EM57059 which measures 12' wide x 16' long. It's not the exact dimensions you wanted but it will still cover most of the area you need it…

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Answer 4

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 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 5

Generally speaking, the lube plate will need to cover the skid plate on the 5th wheel hitch. There are some pin boxes out there that will recommend a specific lube plate but most of the times this classification will be from the 5th wheel hitch…

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Answer 6

The 7290 that you see is a casting number. It is found on AL-KO hubs that fit #99 spindles. I found that the bearings used are #28580 which would be the inner bearing and #25580 which would be the outer bearing. For the seal use #91030.

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Answer 7

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 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

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 10

The old version of the #HBA-CAM used 4 wires, but the product was updated awhile back and now uses only two wires as shown in the photo on the product description page. The white wire from the HBA-CAM would tap into the white ground wire and the blue…

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Answer 11

You will need the Red LED Trailer Clearance or Side Marker Light #328-K-52 or Amber LED Trailer Clearance or Side Marker Light #328-K-51 for your 2018 Forest River Sunseeker motorhome. These lenses have the same Top Command SAE-AP2-16 markings on the…

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Answer 12

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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