Hi,

I need to haul this truck but do not know the Curb weight.

Dealership DB does not go beyond 90.

Any one know a DB I can tap?

Thanks 

Leaky

This is solely a guess;  but I'd say no more than about 6,000lbs.  Most likely a fair bit less.

Shouldn’t be enough of a difference from 88 to 90. Just use the 90 specs and add 300 lbs for 30 years of dirt and owner junk.