Technical HELP! multi eating inner of rear tyres!

[turbo_pib]

Thanks guys for support.
Front suspension is ok was just a loose antirollbar link is just that i spent a lot of money on this multi and changed a lot of parts recently so im just frustrated...dont think im gonna sell it as missus like it and i do too when it works properly!!
Yes james i do have a towbar and luckily for you i dont need it. So make me an offer and take it off you are welcome to it