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Hello & welcome,
To properly convert your 1973 145 to an M40, you will need the following parts based on what I see in your picture.
Correct clutch and brake pedal assembly from a 1973-1974 140
Bellhousing from earlier B18 or B20 with cable operated release arm
Flywheel, should be 6 bolt, but could be 8 bolt
Clutch kit and pilot bearing
Retaining clip for pilot bearing
Flywheel and clutch bolts
Clutch cable
Grommet, washers and nut to mount clutch cable at firewall
Correct shift handle assembly and knob to match shift cover
Shift boot
Rear output flange if different size than driveshaft flange
You won't need to modify or replace the driveshaft as it's already the correct length.
Dave is probably thinking of the early automatics which had longer tailshafts, but the later BW35s got shorter tailshafts and used the same length driveshafts as the M40. If you were converting to an M41, the front driveshaft half is shorter because the transmission is longer.
You will have to do some wiring modifications to the starter and reverse light systems.
May I ask why you are trying to convert to an M40? Is your BW35 not working?
Every automatic to manual conversion I've done was to an M41, the overdrive version of the M40.
There is a slightly different list of parts needed to convert to an M41.
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com
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