M57 BMW Engine to ZF Kit
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Technical
You will need to use the starter ring gear from the L322 / BMW X5 diesel shown here, otherwise you can’t fit the flex plate bolts.
Please note if you are fitting this kit to the P38 engine, you are not able to use the above starter ring gear as it doesn't have the necessary crank sensor pins. You will need to mod the P38 one by adding 4 holes for the torque converter bolts.
If using the P38, 4.0 medium diameter converter you can use either the 4HP22 or the 4HP24.
If using the P38, GEMS 4.6 large diameter converter you must use the 4HP24.
The 20mm adapter plate and the V8 autobox work out the same length as the P38 diesel box so no changes to propshafts or mounts are required.
We can supply any combination of hydraulic or electronic 4HP22 or 24 to suit your vehicle, if electronic and not in a P38 you can control it with a Compushift
Please note if you are fitting this kit to the P38 engine
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Installation
The sequence to fit to the crank is as follows :
starter ring gear
spacer ring
boss
flexplate
spacer ring
8 x bolts
Please note you will need to modify the starter as per the photo below:
