If there is an EXTERNAL spring that should hold the jack up... If the "retract spring" is internal, there will be ONE hyd. hose going to the top of the cylinder - - If there are two hyd. lines connected to each cylinder, you've got problems.
Suggest you look at the Power Gear web site and contact them with questions..
Hal & Ginny Miller '04 Beaver Santiam PRT40
'04 Saturn Vue - US Gear Brake - Blue Ox tow
3"girls" (2 Irish Setters - 1 Retriever) - RIP Annie & Emily (12/26/2017)