Mets slugger Yoenis Cespedes obviously wanted a truck as huge as the homers he hits ... 'cause he dropped more than $30k to turn his 2016 Ford F50 truck into a swagged out MONSTROSITY.
We spoke to Alex Vega -- honcho of the Autofirm down in Miami -- and he says Cespedes had only one request for the custom job ... make it HUGE.
Vega laced the truck with a new Avorza grill, halo headlamps, new rear taillights and a 6 inch lift kit to make the ride a little more Shaq like.
Throw in a custom Avorza exhaust (adding 120 hp) and you get a final price tag of $30k worth of four-wheeled badassery.
Easy to see where Yoenis is spending that new $75 mil contract ... dude has a different whip each day at spring training.