[quote=Dogboy]Nuts are fine for the anchor bolts and crossbar bolts - no need to use an anchor bar. You couldn’t use the anchor bars under the front crossbars even if you wanted to. The anchor bars are threaded 5/16-18 and the crossbar bolts are 3/8-16.
I would check the hulls before adding the updated plates to the rear crossbar. Most boats probably don’t need them. The ‘84 - ‘86 boats had the problem hulls. Look up under the hull flange. If there are cracks worse than superficial gelcoat cracks, then add them in the rear. Otherewise, it’s probably overkill. It can be difficult to get the brackets to fit into the rear pockets and you will have to cut in rear access ports, so may not be worth the effort.
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