Max. tire width for LT tire

[RLS]

Anyone who has the 235/75R15 willing to crawl under to check how much more room there is on the sides. I've found an LT tire that has a 2,535 lb. max. load ( D-rated ), but is a wee bit bigger! Need an extra 1/4" on each side for it to fit. Overall diam. on the 235 is 28.9" and what I am looking at is 29.1". The sect. width of the 235 is 9.5" on a 7" rim. The LT tire is 10".
Any thoughts? Will it fit?

Thanks in advance, Bob