1978 Royale 26FT in Casper, WY

Location: Casper, Wyoming

Asking Price: $45,000

Update: 7/11/2026 – This listing sold for an undisclosed amount.

**This post was converted from a legacy listing – the ad with price and seller contact info is linked at the bottom of this article

Key Motorhome Specs

• Model Year: 1978
• Odometer: 33,136
• Trim: Royale
• Length: 26′

Description & More Pictures

1978 GMC 26 Royale Motorhome

Unlike other GMC coaches on the market, this renovated motor home has a bright and white interior, making the inside as modern as the sleek exterior.  The Bounds Co-Op Renovation replaced dried and cracked panels and seals, ensuring a weather-proof canvas for the interior update. Most of the appliances or mechanical system have been upgraded beyond OEM specs.  We have had many fantastic journeys but it is time for a new custodian of this magnificent coach.

Bounds Co-Op Renovation in 2005

• Replaced stock 403 cu with Bounds Co-op 455 Olds crate cu.
• Thorley headers
• New transmission
• Air Ride original  2 Bag replaced with 4 Bags –
• 6 wheel disc brakes
• “Hot Shot” Alcoa Aluminum 16” wheels – 7 each recent tire replacement, including spare
• Honda 6500 watt water cooled generator (replaced stock Onan 4500 watt)
• New Norcold refrigerator (DC and Propane)
• 3 color custom base/clear paint with original Coachman strip lay out
• Charcoal Zip Dee awning
• “Mac Daddy” custom dash
• 4 new captains chairs
• Alpine AV sound system with DVD changer & GPS
• complete new interior with solid wood cabinetry
• new carpet

Work done since Bounds Renovation in 2005

Chassis:

• Front wheel bearing sets (servicable) – upgraded in 2023
• Steering gear – upgraded in 2022
• Joints – upgraded in 2022
• Final Drive replaced 3:02 w3:52 ratio – upgraded in 2021

Cab:

• Windshield replacement (Driver side in 2026, Passenger side in 2023)
• Window tinting on all windows – done in 2012
• Lap belts – installed 2012
• New ceiling fan – installed 2012
• Window covers – 2 sets (Partial for front, Total – Front and Back – 2012
• New Hot water tank (12 volt / 120 volt) – upgraded 2023

Engine:

• Air conditioning compressor replaced with Samsung – upgraded in 2021
• New Windshield wiper motor – replaced 2021
• Left exhaust manifold gasket – serviced in 2026

Highlight Video

Photo Gallery

CLICK HERE to view this 1978 Royale 26FT in our Marketplace

**Please note this GMC Motorhome was originally listed for sale in June of 2026. Depending on when you are viewing this article it may have since been sold.**

Last Updated on July 11, 2026 by GMC RV For Sale