It's worth pointing out here that because the FMC engine/trans was installed roughly 5-deg out of level to the coach (the engine/trans rises upwards moving away from the diff) and the trans mount crossmember is also tilted (up to the rear) about 5-deg so it mates better with the bottom of the trans. Because the Cummins will sit closer to 'level', I've reduced the 5-deg angle to closer to 2 to 3-deg. Again, this is why the ends of the trans cross-member need to be extended vertically so it can sit/hang lower than before.
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