1973 GMC Motorhome

23' Birchaven
The D3 Conversion


Click on any thumbnail photo below for a larger view



Custom Built, one of a kind

1976 GMC DuraMax Deisel


One of the most expensive classic GMC projects ever undertaken (design and build costs coming in at over $200,000).

She was originally conceived to allow for a long term road trip of the USA and Canada with modern drive train reliability, all modern conveniences coupled with classic GMC Motorhome looks. She was designed and built out by Jim Bounds at the GMC co-op in Orlando Florida

She started life as a 1976 Birchaven, the body was removed and custom modified to mount on top of a Workhorse LF bus chassis with 6.6 Duramax turbo diesel engine, Allison 5 speed transmission and Front Whell Drive. Often described as a hybrid between a Motorhome, a private jet and a hot rod, she provides luxurious accommodation for two adults.



She includes:

6.6 Duramax Diesel with approx 10k

Allison 5 Speed push button Transmission

19.5 " Aluminum rims

Four new tires (approx 500 miles on them, less than 6 months old)

Remote control Ramco Mirrors

Zip Dee awning

Frameless Glass privacy windows

All wheel air ride with 2 new Viair compressors

New Instrumentation dispays


OBD diagnostic system.

Tire pressure monitoring systems.

Rear back up camera

Kubota diesel generator with only 8 hours run time

Classic Auto Air street rod cooler AC for cockpit

Precision Twintemp Dual Heating System radiant heater/furnace,

TV/DVD/stereo system with 8 speakers.

LED interior lighting.

Norcold Refrigerator

2 Burner Verona Porcelain cooktop


Dometic Push button toilet



She'll cruise along at 75 mph all day long and climb grades like they're not there.

On an 1,100 mile drive from Colorado to California she gave an average of 18mpg. She is registered in California as a '76 GMC Motorhome with a diesel engine and therefore requires no smog in California.

She gets attention everywhere she goes so be ready to chat. There's not much GMC Motorhome left in her but she really is
The Ultimate Hot Rod with Plumbing.

Here's she is during birth



Martin Carew
Temecula, CA
951 795 2396