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Tiger Transmissions

4R100/E40D Sonnax Performance rated accumulator springs 36948-18K S36926CK



Ford E4OD and 4R100 accumulator springs can break, weaken or collapse, causing long, soft shifts, particularly in towing and heavy-duty applications. Recalibrate shift feel with Sonnax performance rated accumulator spring kit 36948-18K 

  • Best in heavy-duty and towing applications
  • Gives quicker and firmer 1-2, 2-3 and 3-4 shifts
  • Recalibrates shift feel
  • S36926CK