I would think eliminating the cushion spring on the shaft and making it solid would help. Maybe increasing the return spring pressure would help too.

mrrandyj sells these billet servos here in the trans and differential for sale section. I've bought both the rear and front servos from him. Real quality pieces.

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"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.