just to add to this,i picked up a set of spec r shafts and although i was initially put off the brand i found them well made with no slop,ran them for one meeting so far so will update if there are issues with these,so far so good,i did have a lot of slop in the bearings so i have shimed all the slop out,i used small 0.1/0.2 and 0.3 shims that i had lying around,so with 1.8mm of shims between the bearings and 0.3 mm shim between the bearing and pin,once all tight i have no binding and the smallest amount of slop,it could be measured as 2 deg of slop before,now id say i have less than 0.5 deg so hopefuly this will translate into faster lap times,im hoping the front will now feel more planted
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