Widest rubber without tubbing?

[87R10]

Wondering what the widest tires I can stuff into the rear without tubbing or narrowing.

Its a fleet, and will be dropped 3" to 4".

 

[J Knight]

325/50/15
325/60/15

 

[87R10]

325/50/15
325/60/15

Thanks John.
I gotta say, I'd love to build it as bad as yours but I don't have and probably wont have the drive line to warrant the steam rollers. That and I don't want tubs to dominate the box space...But Damn, does your truck ever look sweet. Trying to find a good middle ground

 

[bucket]

I'll piggyback off this thread...

What's generally the widest that can be stuffed under a stepside? Haven't measured, but I think it's a little wider at the wheels than a fleet.