depends on how you define "too loud" and what you'll use the truck for .... originally there was a jute/felt underlay beneath the rubber mat - it was great for soaking up moisture and holding it long enuff to rot the floor - some folks use the same thing, some use more modern sound deadening stuff, some use the foil backed bubble stuff, some use carpet ... some don't use anything

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics