Hi Mate,
Not sure the super pro number but the cheapest and best way to buy the replacement bush is via GKtec.$22 each plus delivery.
Everywhere else you had to buy a set and best price I founf (for four. I only needed two) was about $120.
https://www.gktech.com/oem-rear-knuckle-bush-replacement.html
If youre in Melbourne I have spare set I can sell you for cost. Otherwise order from Gktech or pick up from one of their distributors.
GKTECH BUSHES.pdf