Replace outdrive lower unit shift shaft and crank - DIY 

If interested in purchasing the products below, visit our Amazon affiliate links below. I earn from qualifying purchases. 1. Quicksilver gear set (43-87807A 4) 2. Bearing carrier rubber O-ring (2531534) 3. Clutch dog (52-853594T) amzn.to/3OHaiBP 4. Shift shaft rod (77481 1) amzn.to/3tZt5QY 5. Shift shaft Crank (76865) 6. Pinion gear nut & washer (Nut: 11-35921) (Washer: 12-92721) amzn.to/39VYT2s amzn.to/3NhkwI4 7. Drive shaft (45-42634) amzn.to/3QMn6c1 8. Propeller shaft (44-824110) amzn.to/39OSk1L 9. Shift Shaft removal tool (89-101-07) 10. (2-4-C Lubricant) amzn.to/3NwTCfg 11. SAE 90 gear lube amzn.to/3OUVsYN

I came across this video while searching for help with a different issue. I watched a bit to see if any of it was relative to my issue, and was thoroughly impressed. I would have no hesitation to attempt this procedure on my own after watching this video. Every part, tool and the exact procedure are painstakingly displayed and explained. This may be the most precise video how to video on YT. Thank you.

This is by far thr BEST how to video on RU-vid! By far. Great Merc alpha drive video. After watching anyone can do this repair! Anyone! A child could do it! Thank you!

So many helpful images here. Thanks for putting this video together.

This video is amazing. Thank you so much.

Great detail, nicely done 👍😁

You got to remember to add zinc to all that the older stuff works better because there was zinc in all the oils also a lot of the replacement parts are molded from recycled metal back then they didn't recycle metal they made Metal pure but good job on the rebuild! Very useful

great video thanks

I was told to make sure that the boat is in forward

This series of videos is expertly put together. Thank you. I’m considering rebuilding my Mercury gear box since my shaft bearings are showing slight slack wear. Can you tell me approximately how much all these parts cost you with the specialty tools? Since this is not the only issue with my Merc outboard, I have to weigh the possibility of a total repower.

Did you have a video on how that driveshaft pinion bearing comes out

Great video, landed here because I'm having issues with my 05 Mercury 115 4 stroke. I would give my motor some gas and it would Rev very high and slowly picks up speed. I used to top out at 43 mph, now only 30 mph. I'm thinking maybe my shaft my by damaged? Who knows. Any experience with that?

awesome video Mike, i have a question maybe you can help me out with. when i am putting the lower unit back together i put my lever in neutral and i made sure that the shift shaft was in neutral and so when i go to test my lever like i'm driving ready to go it does not do into forward or reverse. i am completely.lost can you help me out thanks in advance

Great video. Thank you. My lower unit does not have a serial number. What would happened if i were to use one of the wrong letters on the pinnon gear nut wrench?

Michael.. when my car first starts it runs perfectly but as it warms up it starts to miss, or run rough. I just put in all spark plugs. Could it be the coil pack?

Can I replace the shift shaft bearing without removing the drive shaft?

Do you offer rebuilding services at all ?

excellent guide but my brother in christ get you a breaker bar.

Mercury Alpa One 4.3 doesn't get the reverse