I have a '95 rm 125 rear showa shock that needs a rebuild/seal head but the question is how do I remove the spring? The retainers are not sloted to allow disassembly-do I have to remove the shaft/sealhead as one to remove the spring? I have done shocks before but mainly snowmobile (fox,ryde fx,kyb,hpg,ect)but this one strikes me as strange. It doesn't make sence that you should have install the spring before the shaft/sealhead/piston asm. Any help guys please? Thanks , Tony