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Comparing Timbren FR350SDJ and FRTT350J for 2020 Ford F-350  

Updated 09/08/2021 | Published 09/06/2021



Question:

I have a 2020 Ford F-350 and tow a 15,000# 5th wheel. What is the difference between the Timbren FR350SDJ vs FRTT350J?

1

Helpful Expert Reply:

The correct Timbren Suspension Enhancement System for a 2020 Ford F-350 is part # TFR350SDJ. The part # TFRTT350J is designed for service body applications. The difference between them is height. The service body version is single convoluted and won't compress as much as the regular version which is double convoluted and will compress more. The more compression you get, the better the ride quality.

expert reply by:
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Conner L
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