2017-2019 GM Duramax 6.6L L5P Helper Springs

One of the best towing upgrades you can make on your 2017-2019 GM 6.6L Duramax L5P is the addition of some aftermarket helper springs. A set of these GM 2500/3500 helper springs can help offset that unsightly sag caused by towing or hauling heavy loads while improving ride quality and handling along the way. These helper springs easily install onto your rig and help prop up it's rear-end when loaded down with trailers and gear. GM Duramax Fitments: 2017, 2018, 2019 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.