Recommended Rear Suspension Enhancement For 2021 GMC Sierra 1500 AT4
Updated 04/28/2021 | Published 04/26/2021 >
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Question:
Will be towing a 6500 lb travel trailer...which Timbren SES should I order for my truck?
asked by: Chris
Expert Reply:
The correct Timbren Rear Suspension Enhancement for your 2021 GMC Sierra 1500 AT4 is the Timbren Rear Suspension Enhancement System # TGMRCK15S you were looking at which has an 8600lb load rating, but I have a different option for you.
I recommend going with the SumoSprings Solo Custom Helper Springs - Rear Axle # SS45FR which have a load rating of 1500lbs which is plenty for your 6500lb travel trailer since the only weight that gets put on the rear suspension of your truck is the tongue weight of the trailer. This option will not affect the unloaded ride quality of your Sierra, where the Timbren option is known for causing a stiff unloaded ride due to being so much stiffer.
I included videos for both of the products mentioned for you to take a look at.

Product Page this Question was Asked From
Timbren Rear Suspension Enhancement System
- Vehicle Suspension
- Towing/Load Leveling
- Bump Stops
- Suspension Only
- Extra Heavy Duty
- Rear Axle Suspension Enhancement
- Timbren
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