Moroso Solid Motor Mounts Shifting

I've got Moroso solid motor mounts on my 408 as well as a polyurethane transmission mount. For some reason the driver side motor mount keeps coming out of the hole in the engine bracket (that is bolted to the engine itself) and allowing the engine to shift back on the driverside a half inch of so.

Originally when I went to install the moroso solid motor mounts to the factory engine mount brackets I noticed that the little bump on the Moroso motor mounts weren't fitting into the holes in the factory brackets very well so I enlarged the hole so it would fit. Wondering if anyone else has run into this or if I should weld a bigger bump onto the moroso mount being its super short sp more of it engages with the hole in the motor mount bracket?

See picture for what I mean about the bump that fits into the engine mount bracket being really shallow so not much engagement in it.

I ran them for years no problems. Maybe nut is coming loose, I run lock washers. If not there’s always a steel strap you can run from motor to k member. Just trying to help good luck!

I have used these many times in the past and they were always a little poor in the fit department. Mine would start turning but after while I just ignored them and ran them that way never had a issue or failure. But yes if you were to weld like the head of a leaf spring center bolt that would solve that problem.

n.y.340 dart said:

I ran them for years no problems. Maybe nut is coming loose, I run lock washers. If not there’s always a steel strap you can run from motor to k member. Just trying to help good luck!

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A solid mount on anything requires torque checks every so often. A longer pin will help if it does loosen.

I think i'll just have to weld a longer pin on. I've got them super tight and even after the one rotates it's still really tight.

I've run those for years. I had mine loosen up once....I now use blue lock tight on the nuts, no more issues, but I also recheck them every now and then (I check mine at the beginning of the race season).

As flyfish said blue loctite, or double nut them with lock washer. A local nut & bolt shop can probably supply you with some half thickness nuts.

Mine did the same. The locator isn't very pronounced. Torque it down harder, breaker bar style 100 lbs on hard washer. For me it was the bracket to biscuit nut... it would come loose and tightening it was impossible almost ...couldn't move the wrench more than a 1/4 turn at a time..little frustrating..lol..i had had enough one day... and just welded a half inch bead mount to bracket each side in top.