Choose Options Fiberglass Peterbilt 379 388 389 Flat Top Sleeper Cap Fibertech MSRP: Now: $1,499.95 - $2,111.95 Was: Fiberglass Peterbilt 379 388 389 Flat Top Sleeper Cap *Fits Unibilt Trucks Only Fits Peterbilt 379 388 389 Trucks Factory Replacement Available In 36" or 63" (Choose Option Above) Includes Built-In Fiberglass Reinforcements To Re-Attach... MSRP: Now: $1,499.95 - $2,111.95 Was: Choose Options