No problem.., we pop in here to help like-minded folks look'n for some fun in the dirt..!!
"What is the easiest way to check the mounts?"
If you crawl 'round under there, you'll see the rubber mounts where the frame mounts to the body. The two front ones are easy to see in the forward part of the wheel-well. Mine are about 3/4" thick. (stock)
NOTE: doing a body lift isn't easy & can affect the steering & radiator alignment.
I do pretty much what you intend. Rough trails & some hill climbs. If I do it, the others will follow. If I don't, they won't try.
I have 2.5" suspension lift W/32's ..... I wouldn't have done the lift except my radius arm bushings exploded so while I had it apart, I opted for new suspension.
"It has the stock 3 speed trans on the column, which I'm debating whether to just buy the 3 speed Hurst floor kit or go the whole 9 yards and drop a NV3550 5 speed"
Same here.., for many yrs. I've run the stock 3sp. with the Hurst floor shifter. Others will tell you the move to the floor is the best mod they've done.
The 3550 would be good for rock crawling & long freeway runn'n.
IMHO, it's overkill for what you're doing.
These rigs are "old-school" & real easy to work on. Mods however, can be tricky & a "rule of thumb" is; "Each change you make usually requires two more changes". :lol:
Post some pics if you can.., you may already have a suspension lift. Measure the distance fr. the frame to the front axle... >

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