Hi guys.

I run an E34 530 V8 and I want to upgrade the 5HP18 to a 5HP30. The 5HP30 can handle ALOT more torque and I want the car to be ready for the future if I put in another engine (don't know what).

I have:
- the box and converter (will both be overhauled)
- 5HP30 AGS
- driveshaft (540i)
- differential (540i)

And I will buy the shafts from the diff to the wheelhubs brand new.

Now I plan on rebuilding this 5HP30. This is an original 540i box so totally E34 ready. This rebuild is not a problem for me. While looking for parts I noticed 2 things:
- some 5HP30 variants have "5 - 3 - 4 - 5 - 5 - 5 - 6" clutches. These are V8 variants
- some 5HP30 variants have
"5 - 3 - 3 - 6 - 5 - 6 - 6" clutches. These are the V12, Aston Martin and Bentley variants
- there are 3 sets for clutch packs. 1 pack used on the V8 variants, 1 pack used on the more powerful engines and 1 unique pack used ONLY on M62 engines (probably very short production run)

Clutch B uses 5 plates on the V8 variant with number
Clutch B uses 6 plates on the V12 and power engines with number 1055271054

- The 6 plate variant should theoretically handle more torque if the clutch plate is identical in friction coefficient. Right?
- The difference in part number, could that be because a certain clutch plate has a higher friction coefficient? If so, how can I find out which one that is?

I want to make the strongest possible variant. If needed I will buy another 5HP30 from a V12 and use the steels from that one to get those clutch sizes.