Trailer bunk Shimming

[mnpracing]

I want to shim my trailer bunks to get additional prop clearance. What are some ideas on how to get 1-2" additional clearance? I've tossed around using fender washers (probably need too many), an additional piece of 2x6 at the mounting points, or just doubling up the 2x6's for the entire length of each bunk. Also if I do this to the front mount of the front bunk as well, I'm guessing that I would have issues with the bow stop / u-bolt mating.

Thanks in advance for any help and ideas.

[you da man]

Wow, that's alot of shimming. I've seen/heard people needing an half inch but 2 inches? What prop you going to justify the need of that much addition clearance?

[mnpracing]

I haven't picked one out yet, but currently I have less that 3/8" clearance between the lowest point on the prop and the metal strip that runs underneath it (when on the trailer). It's the stock prop on an 06 OBV.

So maybe a more realistic amount would be shimming 1"?

Thanks

[you da man]

1" is definately more reasonable. I may shim mine up when I go to the Acme 1235 or the OJ Fusion prop. There are members on here that have gone from stock props to the Acme 1235 and don't have clearance issues so they say but they also have LSV's and XLV's

[mnpracing]

Have you thought about how to shim them? I'm not sure what to use to do it.

[MartinCaron]

What's the normal clearance ?

[you da man]

What's the normal clearance ?

He said about 3/8"

[Razzman]

Remember this, the bunks do not sit flat but angle in towards the centerline of the boat/trailer. As the trailer and therefore the bunks are designed for that boat and the bunks are designed to sit in the pockets under the hull, shimming them (especially 2") will move them even further inboard and i'll bet you 100 to none that your boat will no longer fit correctly on your trailer and not just the bow stop. I know that on my '07 LSV when centered on the trailer there's less than 1/2" clearance on each side of the bunks and hull.