I would think you could replace the trailer bunks and carpet with the boat still on the trailer. But how do you support the boat:
From the ground? This would require you to unload the trailer suspension.
Place blocks between trailer crossmembers and the hull?
Do you tilt the boat on the trailer and to one side at at time?
Do you have a easy safe process?
Thanks

The easy safe process it to do it with the boat off the trailer!!!!! HAHAHAHAHA

The safest way to do it on the trailer is with some yardarm jacks, however not everyone has access to these.

I would think doing it side to side is the best bet because going back to front will bring the tongue up when the weight is on the transom and put a lot of strain on the tongue when you lift the transom.

I've replaced bunks on several trailers (mine or buddies). We've always gotten everything together and gone down to the local ramp. Dropped the boat in and tied it off out of the way. Brought a portable generator or battery tools and changed everything over right in the parking lot. Put the boat back on and no concerns of a boat falling on you or trying to work in such confined spaces. Remember. you will have to lift the boat high enough so that the bolts can be removed from the bunk brackets. If they go through the bunks from the insides it will require lifting the boat 12 (or more) inches above the trailer.

T500hps has the right/ safest idea.

Thank you, so far it's unanimous and I agree. Just not very convenient for me but then the launches & docks aren't nearly as busy this time of year in Michigan.

I think you meant "unanimous"


No sense in hearing next year from a guy who lost an arm or leg because he was trying to do something stupid.

I replaced the front 'V' block this spring with new 4' front bunks. This required adding a new crossmember & front brackets. Unfortunately, the best way to fit this arrangement was with the boat on the trailer. I ended up using combo of floor jack & cement blocks with 2 x 6's. The trick was as you jack under the front , it's changing the balance on the trailer, even with a tri-axle trailer. It was a little bit of a pain, but result turned out great.

I would also suggest for a simple bunk replacement, it would be easier to rent a slip in a local marina for the weekend.

I think you want to be "anonymous" if you are doing it WITH the boat on the trailer!!!