E30 Zone

M40 engine parts
Diff - £100
Head - £80
Main block - £120
17154609 - timing cover - £5
1709843 - m40 coolant hose port - £5
1715399 - throttle housing cover - £15
Hoses - offers
1717641 - ignition wiring holder - £5
1230500168 - distribution dust cover - £12
Vicious fan clutch coupling - £10
1715497 - ignition wiring protection cap £10
Ignition coil - £15
Ignition leads - £20
Distributor cap - £15
Steering knuckle - £50
1133495 - m40 engine mount - £15
1133494 - m40 engine mount - £15
Starter - £10
7681955154 - power steering pump - £40
1715310 - valve cover - £50

Any idea on the ratio of that diff?

Have you got a gearbox cross member for sale by any chance