2021 Suzuki 150hp, 175hp and 200hp Lower unit failure analysis and rebuild.

I've seen at least 7 of these lower units fail abruptly with under 400 hours on them.
Every single time the pinion gear has been completely annihilated in one way or another.
I'm curious if anyone else has had issues with these 2021 and 2022 Suzuki DF150, DF175 and DF200 lower units?


Here are a few of the things I used in this video:

➡Torque adapter: https://amzn.to/3MnGNH9
➡Bearing carrier puller: https://amzn.to/3VYDZDa
➡Timken 6010-ZZC3 (carrier bearing): https://amzn.to/3MjI81j
➡Cut this socket and weld it offset: https://amzn.to/430vLP0
➡Or just buy this tool 09926-29310: https://amzn.to/42MCn4P
➡09921–29410 Driveshaft spline socket: https://ebay.us/meaLOt

Some of the parts needed:
➡57300-96850 Gearset: https://ebay.us/2Eeh98
➡57500-87861 Reverse gear shim set (Clutchdog Side): https://ebay.us/yMn1fj
➡57500-87852 Reverse gear shim set (Bearing carrier side): https://ebay.us/rAlJhz
➡09181-60005 thru 09181-60013 Pinion gear/ Driveshaft shims (Various sizes)
➡09181-75008 thru 09181-75019 Forward gear shims (Various sizes)
➡57610-93J00 Propshaft: https://ebay.us/OQSGjv
➡O ring for bearing carrier: https://amzn.to/3GSLPuH (104mm ID, 110mm OD, 3mm CS)
➡09282-30006 Propshaft seal: https://ebay.us/d3TN0l (2x per lower)
➡09282-24004 Driveshaft seal: https://ebay.us/vV4HUI (2x per lower)

0:00 Intro
0:42 Pinion failures
2:33 Disassembly
4:30 Clean metal shavings out
4:54 Gear marks
7:43 Glue needle bearings in with grease
8:59 Shim talking
12:35 Install needle bearing, pinion and driveshaft
13:55 Prop shaft
15:55 Reverse bearing
20:00 Reverse gear
21:42 Test by hand
22:53 "Thats all there is to it"

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