1989 70, lower unit bolts

Muletrain9

Cadet
Joined
Jun 14, 2022
Messages
11
I was wondering if anyone knew off hand the size of the bolts for the lower unit of my 1989 Johnson 70. Bought a boat withbthe lower unit sitting in the hull. All sellers list the bolts for sale, but not the sizes. I refuse to pay 35 dollars for 5 bolts I can likely get for 4 bucks. Thank you to anyone with the knowledge!
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
37,818
You need 6 bolts and one more for the trim tab.-----They are a 3/8-NC thread and stainless for 4 of them.----One is a 5/16-NC thread.------One is a 7/16-NC thread.-----Measure the gearcase and add proper length for thread engagement.
 
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