Need advice on rear suspension set up

[Maxx]

100% of 306's unless the beam has been rebuilt will need new seals and new grease at the very least, 90% of 306's will need the beam rebuilding with bearings and or shafts, Anyone saying otherwise know's nothing about them, Harsh but if your keeping it a job worth doing.

Preventive maintenance here is worth it's weight in gold,

Yes, preventive maintenance is what this '6 has lacked in the past but I'm all for it thanks for the info.

yeh thats about an inch and a half too low at the back.

Yeah I'm not keen, it's how it had been done by the previous owner. It's hilariously fun to drive but it's not how I want it