Advice on GM 14 Bolt Corporate Full Float w/3.73 gears that are junk

[YakkoWarner]

I've had numerous 3/4 and 1 ton Squares over the years and all of them had 4.10 gears with a 454. My current K30 has 3.73's with a 454. I think I figured about why the others had 4.10's was because they all had the Z82 factory tow package. The person that ordered this K30 for some reason didn't.

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My R2500 Suburban (1989/454/TH400) came with the trailer tow package and has the 14bolt full floater setup with 3.73 gears. I'm generally not pulling 5000 pound trailers around so it works out fine.