hello again folks. engine is pulled on my 743 and im still looking for the mystery leak. i think its the spool return line but i havent got it out yet. anyways im going to do some preemptive maintenance while in in there. i want to reseal my control spool. it looks like i need quad rings and the boss rings for all the fittings. the boss rings will be easy to get but im hung up on the quad rings. i need 8. the bobcat dealer wants $25 per and im not okay with that. the part number is 6646372. has anybody been able to cross this to something generic? i also noticed that the inlet of my hydrostatic pump is weeping pretty good. might as well do that one too. its a lip seal pn 6513090 i would also like to do the coupler joints pn 6598304 and 6598303 if anybody has some non bobcat part numbers for this stuff i would be very greatful machine sn is 501938975 thanks spencer