Hi, just wanted opinions as to how to straighten right side rear is slightly bent inwards look at my pics ?

 

Check the frame where the A Arm mounts to it, if the mountings are bent you will have to try to get them straight. However most of the bend will probably be in the A Arm, and finding a used replacement will be the cheapest and easiest option, as getting one of them straight again is a bit of a nightmare. "Swinging half axle" type suspensions always do tend to lean in or out though, and a weaker or stronger rear spring alters the lean considerably. Be sure it isn't that before changing an arm.

 

To make the RH side wheel more vertical you turn the spring adjuster anti clockwise, so the collar sits further down on the snail cam pegs.