1999 International 3800 Partial Conversion

by Calvin Thomas
Published: November 3, 2023 (4 weeks ago)

The best engine/transmission combination, professional roof-raise, 80% complete and ready for your finishing touches and style!

Specifically selected for the DT466E/MT643 combination, the bus is also equipped with cruise control and a Klam Driveline Retarder courtesy of Littleton Public Schools.  What’s a Klam Driveline Retarder??? Magic, that’s what.  It uses magnetic eddying (yeah, really) to slow the vehicle without friction or heat buildup.  Save your service brakes AND stop smoothly.

Air brakes and airbag rear suspension. Titled as a motorhome in FL.  Coincidentally, FL is one of the best states for full-timers.  Registered and insured through State Farm in current configuration, so no unpleasant surprises when it’s time to get on the road (legally!)

5/6 tires new as of 2021.

Mechanically evaluated by Allegiance Trucks Hudson (IC dealer/shop) in 2020. (With receipt)


Conversion details:


Wiring de-rat’s-nested.  No more ignition interrupt circuit.

Floor Ospho’d and painted

16″ roof raise completed by Colorado Custom Coachworks. Interior height over 90″, exterior appx. 12’6″

RustOleum High Performance Protective Enamel exterior paint.

Wheel well rust holes removed and patched with heavy plastic sheeting, (rust proof) riveted and PL’d, bedliner spray on the outside, spray foam backing on the inside.

16″ on-center 2×4 floor joists, spray foam between, 3/4″ ply subfloor

2×3 wall studs screwed and PL’d onto bus ribs

2″ foam board wall and ceiling insulation

Furring strips screwed to roof ribs- ready for tongue-and-groove board ceiling.

14(!) RV windows, installed between ribs to maintain structural integrity.  Butyl tape exterior seals.

Standard-size lightweight RV door framed in and exterior skinned.  Includes mechanical combination deadbolt.

Interior framing, including king size bed frame, “attic” storage space above bed, bathroom, and bedroom dividing wall.

All framing done with Kreg fastening system.

Kid-size bunks.

King size Purple mattress, always mattress-covered, 1 year old.

2x 100 gallon fresh tanks under bed to prevent freezing, 12v water pump with accumulator, pex plumbing to sink and shower, capped plumbing tails for future kitchen sink.

Under-bed storage pass-through

Dometic CFX3 95 top-open fridge.

EZTank Tankless 101 propane water heater with roof exhaust and steel propane lines.  2x PowerTank brackets installed on-frame.  Easy to change propane tanks at an exchange or have them filled for more capacity.

Stock tank tub, big enough to soak up to your neck!

100 gallon grey tank under body with frankly excessive steel attachment frame.

Nature’s Head composting toilet.

Copilot seat and vintage bench seat with seatbelt bolted through flooring.

6000 lb receiver, 5000 lb hitch, Trailer plug, & MasterTow dolly included.

Full-time lived in through NY winter and FL summer.  Cross-country trip from NY to FL and back to GA completed summer 2021.  Currently located near Fayetteville, NC.

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