Originally Posted by John_Kunkel
Originally Posted by CMcAllister


What is actually accomplished by pulling the springs and blocking it?


This effectively cancels the cushioning function of the accumulator...makes a firmer 1-2 upshift but risks damaging the rear clutch.

How can it damage the rear clutch when it is already applied in all forward gears? The only thing happening on the 1/2 shift is the front band is applied unless you manually shifted from 1st to 2nd with an auto shift valve body or a rear band apply manual valve body. In which case then the rear band is releasing on the 1/2 shift. At no point is the rear clutch released and re applied, it is constantly applied 1/2/3.
What damages the rear clutch is shifting from reverse to drive without coming to a stop. Effectively using the rear clutch as a vehicle brake.

"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.