Join Date: Aug 2004
Location: South Bay Los Angeles, CA
nearing 10k miles on my original forum post about the sheared bolts and repair. The welded plate/boss/single bolt has fully held under all conditions, no cracks in the weld repair yet.
on any casting, a raised area that is threaded or has attachment points on it, is usually called a "boss". These are pretty strong and sheared bolts are usually retained in the "boss". a really bad shear can crack or break the boss, but the break most of the time will be external only. bosses can be welded, but usually many shops will make a support "girdle" to spread the stress load to more areas.
i've looked at the "bomb" proof motor mounts, the seem a very good solution that will bolt in and get rid of the headaches of trying to drill and tap the 3 passenger side bolts, as in my case.
There seems to be only 2 solutions: check you bolts now, and repair BEFORE you shear the mount off, like many of us poor souls, and if it's broken and you are reading this thread, then drill/tap, weld, or buy the bomb-proof motor mount and have it installed.
Newly Painted! Emerald Green '96 XJ 4x4 4.0 HO 5-spd
3" Lift + 31" Tires / D35 TracLok / NP231
Drilled out Stock Airbox / Gauge Cluster Upgrade
Magnaflow Muffler / High-flo Cat / MSD Coil