Frequently Asked Questions About Peterbilt 357/378 Roof Trim

Will this roof trim fit my specific year model Peterbilt 357 or 378?

Most aftermarket roof trim for Peterbilt 357/378 models fits trucks manufactured from 1987 through 2007. However, there are slight variations between early models (1987-1999) and later models (2000-2007) due to cab design changes. Always verify the exact year range listed for each product, and when in doubt, measure your existing trim or contact us with your VIN for confirmation.

What's the difference between stainless steel and chrome-plated roof trim?

Stainless steel trim is solid metal throughout, offering superior durability and resistance to rust, though it requires periodic polishing to maintain shine. Chrome-plated trim provides a mirror-like finish right out of the box but consists of chrome coating over steel or ABS plastic. Chrome can eventually pit or peel in harsh conditions, while stainless steel can be restored through polishing even after years of use.

Can I install roof trim myself, or do I need professional help?

Installation is typically a DIY-friendly project that takes 2-4 hours. Most roof trim attaches using existing mounting holes or heavy-duty 3M automotive tape. You'll need basic tools like a drill (for some models), cleaning supplies, and a heat gun for tape adhesion. The trickiest part is usually removing old trim adhesive residue. Professional installation runs $150-300 if you prefer expert fitting.

How many pieces come in a complete roof trim set?

A complete Peterbilt 357/378 roof trim kit typically includes 3-5 pieces: the main front visor trim, left and right side corner pieces, and sometimes separate center and end caps. Some deluxe kits also include additional accent strips. Verify the piece count before ordering, as some listings sell individual components rather than complete sets.

Will aftermarket roof trim affect my cab marker lights or clearance lights?

Quality roof trim is designed with cutouts that accommodate factory cab marker light positions. However, some universal or economy trim may require minor modifications or drilling to properly fit around lights. If your truck has aftermarket LED upgrades or non-standard light positioning, measure carefully or choose trim specifically noted as "universal fit with cuttable sections" for customization.