I want to thank Nathan at Becks Custom Coach for getting me the Freightliner M2-106 specifications.

Unlike a traditional motorhome where you are limited to a few chassis choices, a truck conversion has much more flexibility. You could use a used chassis or new one, a business class or a class 8 truck, and mfg'ers such as Freightliner, Kenworth, Peterbuilt or Volvo. If you go with a new truck, you actually need to specify every single component on that chassis. So it is important to have help and Nathan at Beck's with his extensive experience in the industry made spec'ing the truck a snap.

Here are the details
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MODEL: BUSINESS CLASS M2 106MD CONVENTIONAL CHASSIS

ENGINE
MBE900-300 7.2L 300 HP@2300 RPM;2500GOV 860 LB/FT @ 1250 RPM
ENGINE EQUIPMENT
2004 EPA/CARB EMISSION CERTIFICATION
ENGINE MOUNTED OIL CHECK & FILL
ONE PIECE VALVE COVER
SIDE OF HOOD AIR INTAKE WITH FIREWALL MOUNTED DONALDSON AIR CLEANER
DR 12V 130 AMP 22-SI QUADRAMOUNT PAD ALTERNATOR
(3) ALLIANCE 1031 GRP31 12V MF 2280 CCA THREADED STUD BATTERIES
BATTERY BOX FRAME MTD
SINGLE BATTERY BOX FRAME MOUNTED LH SIDE BACK OF CAB
FRAME GROUND RETURN FOR BATTERY CABLES
NON-POLISHED BATTERY BOX COVER
NO CLUTCH
WABCO 15.5 CFM AIR COMPRESSOR
TEFLON COMPRESSOR DISCHARGE LINE
ELEC ENG INTEGRAL SHUTDOWN PROTECTION SYSTEM
MERCEDES BENZ ON/OFF COMPRESSION BRAKE
SINGLE HORIZONTAL MUFFLER, W/HORIZONTAL TAIL PIPE EXHAUST, RIGHT HAND MOUNTED
HORIZONTAL TAILPIPE, EXIT FWD OF REAR TIRES, LH
HORTON HT650 FRONTAL AIR ON/OFF ENGINE FAN CLUTCH
AUTOMATIC CONTROL W/O DASH SWITCH
MBE FUEL FILTER
FULL FLOW OIL FILTER
1000 SQ-IN RADIATOR - ALUMINUM
ANTIFREEZE TO -34F, ETHYLENE GLYCOL PRE-CHARGED SCA HEAVY DUTY COOLANT
RUBBER COOLANT HOSES
CONSTANT TENSION HOSE CLAMPS FOR COOLANT HOSES
PHILLIPS-TEMRO 1000 WATT/115 VOLT BLOCK HEATER
BLACK PLASTIC ENGINE HEATER RECEPTACLE MOUNTED UNDER LEFT HAND DOOR
ALUMINUM FLYWHEEL HOUSING
AIR INTAKE WARMER
DELCO 12V 38MT STARTER
TRANSMISSION AND EQUIPMENT
ALLISON 3000 TRV AUTOMATIC TRANSMISSION WITH PTO PROVISION FOR RECREATION
VEHICLE INTERFACE WIRING AND PDM WITH BODY BUILDER CONNECTOR, BACK OF CAB
MAGNETIC PLUGS, ENGINE DRAIN TRANSMISSION DRAIN,AXLE(S) FILL & DRAIN
PUSH BUTTON, ELECTRONIC SHIFT CONTROL, DASH MOUNTED
TRANSMISSION OIL CHECK AND FILL WITH ELECTRONIC OIL LEVEL CHECK
WATER TO OIL TRANSMISSION COOLER - FRAME MOUNTED
FRONT AXLE AND SUSPENSION
MERITOR MFS-14-143A FRONT AXLE @ 14,700#
MERITOR 16.5 X 5 "Q+" CAST SPDR CAM FRT BRKS, DBLE ANCHOR, FAB SHOES
NON-ASBESTOS FRONT BRAKE LINING
CONMET CAST IRON FRONT BRAKE DRUMS
CHICAGO RAWHIDE SCOTSEAL FRONT OIL SEALS
STANDARD SPINDLE NUTS FOR ALL AXLES
MERITOR AUTOMATIC FRONT SLACK ADJUSTRS
TRW TAS-85 POWER STEERING
POWER STEERING PUMP
2 QUART SEE THROUGH POWER STEERING RESERVOIR
14,600# TAPERLEAF FRONT SUSPENSION
MAINTENANCE FREE RUBBER BUSHINGS - FRONT SUSPENSION
FRONT SHOCK ABSORBERS
REAR AXLE AND SUSPENSION
ARS-21-4 21,000# R-SERIES SINGLE REAR AXLE
4.78 AXLE RATIO
IRON REAR AXLE CARRIER HOUSING
176N MERITOR MAIN DRIVELINE W/FULL ROUND YOKES
MERITOR 16.5X7 Q+ CAST SPIDER CAM REAR BRKS, DBLE ANCHOR, FAB'D SHOES
NON-ASBESTOS REAR BRAKE LINING
CONMET CAST IRON REAR BRAKE DRUMS
CHICAGO RAWHIDE SCOTSEAL REAR OIL SEALS
HALDEX LONGSTROKE 1-DRV AXLE SPRING PARKING CHAMBERS
MERITOR AUTOMATIC REAR SLACK ADJUSTERS
AIRLINER 23,000# REAR SUSPENSION
AIRLINER RIDE HEIGHT - HIGH
MANUAL DUMP VALVE FOR AIR SUSPENSION W/O INDICATOR LIGHT, W/O GAUGE
REAR AIR SUSPENSION DUMP VALVE AUTOFILL WITH IGNITION OFF OR >5 MPH
SINGLE AIR REAR SUSPENSION LEVELING VALVE
TRANSVERSE CONTROL RODS
REAR SHOCK ABSORBERS-ONE AXLE (AIR RIDE SUSP)
BRAKE SYSTEM EQUIPMENT
AIR BRAKE PACKAGE
WABCO 4S/4M ABS W/O TRACTION CONTROL ENHANCEMENT
REINFORCED NYLON, FABRIC BRAID & WIREBRAID CHASSIS AIR LINES
BW AD-9 BRAKE LINE AIR DRYER W/HEATER
STEEL AIR BRAKE RESERVOIRS
PULL CABLE ON WET TANK, PETCOCK DRAIN VALVES ON ALL OTHER AIR TANKS
TRAILER CONNECTION
NO TRAILER AIR HOSE
UPGRADED CHASSIS MULTIPLEXING UNIT
UPGRADED CAB MULTIPLEXING UNIT
WHEELBASE
315 inch WHEELBASE
FRAME
11/32" X 3-1/2" X 10-15/16" STEEL FRAME (8.73MM X 277.8/.344" X 10.94") 120KSI
1/4"(6MM) C-CHANNEL INNER FRAME REINFORCEMENT
2800MM (110") REAR FRAME OVERHANG
SQUARE END OF FRAME
STANDARD WEIGHT ENGINE CROSSMEMBER
STANDARD REARMOST CROSSMEMBER
STANDARD SUSPENSION CROSSMEMBER
CHASSIS EQUIPMENT
THREE-PIECE 14" CHROMED STEEL BUMPER WITH COLLAPSIBLE ENDS
FRONT TOW HOOKS - FRAME MOUNTED
BUMPER MTG FOR SINGLE LICENSE PLATE
HUCK-SPIN ROUND COLLAR CHASSIS FASTENERS
FUEL TANKS AND EQUIPMENT
50 GALLON/189 LITER RECTANGULAR ALUMINUM FUEL TANK - RH
50 GALLON/189 LITER RECTANGULAR ALUMINUM FUEL TANK - LH
RECTANGULAR FUEL TANK(S)
PLAIN ALUMINUM/PAINTED STEEL FUEL/ HYDRAULIC TANK(S) WITH PAINTED BANDS
FUEL TANK(S) FORWARD
FUEL TANK CAP(S)
EQUIFLO INBOARD FUEL SYSTEM
REINFORCED NYLON FUEL HOSE
FRONT TIRES, HUBS, WHEELS
MICHELIN XZA2.......275/80R 22.5 16 PLY
CONMET IRON FRONT HUBS
F/L DOMED TURBO 22.5X8.25 10-HUB PILOT ALUMINUM #29114/16 DISC FRONT WHEELS
POLISHED FRONT WHEELS (OUTSIDE ONLY)
REAR DRIVE TIRES, HUBS, WHEELS
MICHELIN XDA H/T....275/80R 22.5 14 PLY
GUNITE IRON REAR AXLE HUBS
F/L DOMED TURBO 22.5X8.25 10-HUB PILOT ALUMINUM #29114/16 DISC REAR WHEELS
POLISHED REAR WHEELS - OUTSIDE OF OUTER WHEELS ONLY
CAB EXTERIOR
106" BBC FLAT ROOF ALUMINUM CONVENTIONAL CAB
AIR CAB MOUNTS
NONREMOVABLE BUGSCREEN MTD BEHIND GRILLE
GRABHANDLES LH/RH
HOOD MOUNTED CHROMED PLASTIC GRILLE
FIBERGLASS HOOD
HOOD LINER INSULATION WITH SINGLE FIREWALL INSULATION
SINGLE 11" ROUND AIR HORN UNDER DECK
SINGLE ELECTRIC HORN
SINGLE HORN SHIELD
ALL LOCKS KEYED THE SAME
REAR LICENSE PLATE MOUNT END OF FRAME
INTEGRAL HEADLIGHT/MARKER ASSEMBLY WITH CHROME BEZEL
Omit Marker lights
INTEGRAL STOP/TAIL/BACKUP LIGHTS
STANDARD FRONT TURN SIGNAL LAMPS
DUAL BRIGHT HEATED WEST COAST MIRRORS WITH LH/RH REMOTE
DOOR MOUNTED MIRRORS
102" EQUIPMENT WIDTH
LH/RH 8" CONVEX MIRRORS, BRIGHT FINISH, MTD UNDER PRIMARY MIRRORS
STANDARD SIDE/REAR REFLECTORS
63"X14" TINTED REAR WINDOW
TINTED DOOR GLASS LH & RH WITH TINTED OPERATING WING WINDOWS
RH & LH ELECTRIC POWERED WINDOWS
TINTED WINDSHIELD
8 LITER WINDSHIELD WASHER RESERVOIR W/O FLUID LEVEL INDICATOR
CAB INTERIOR
OPAL GRAY VINYL INTERIOR
M2 INTERIOR CONVENIENCE PACKAGE
MOLDED DOOR PANEL WITH UPPER VINYL INSERTS
MOLDED DOOR PANEL WITH UPPER VINYL INSERTS
GRAY VINYL MATS WITH INSULATION
DASH MOUNTED ASH TRAYS & LIGHTER
FWD ROOF MTD CONSOLE W/UPPER STORAGE CMPRTS &ADDTIONAL CTR CMPRT W/O NETTING
BETWEEN SEAT CONSOLE W/COIN TRAY,CB BIN STORAGE BIN, & CUP & THERMOS HOLDER
PLASTIC MANIFEST BOX - LH DOOR
(2) CUP HOLDERS, LH & RH DASH
HEATER, DEFROSTER AND AIR CONDITIONER
MAIN HVAC CONTROLS WITH RECIRCULATION SWITCH
STANDARD HEATER PLUMBING
SANDEN COMPACT AIR CONDITIONER COMPRESSOR
BINARY CONTROL, R-134A
SILENCER PACKAGE FOR CAB
SOLID-STATE CIRCUIT PROTECTION AND FUSES
DOME DOOR ACTIVATED LH & RH, DUAL READING LIGHT, FWD CAB ROOF
ELECTRIC DOOR LOCKS - LH & RH
(1) 12V POWER SUPPLY, IN DASH
**TBA UPGRADED DRIVER AND PASSENGER AIR SEATS - MATERIAL TO MATCH MOTORHOME SEATING
DUAL ARMREST DRIVER SEAT - INBOARD ARMREST PASSENGER SEAT
LH/RH INTEGRAL DOOR PANEL ARM RESTS
VINYL W/CLOTH INSERT, DRIVER'S SEAT
VINYL W/CLOTH INSERT, PASSENGER SEAT
3 POINT FIXED D-RING RETRACTOR DRIVER AND PASSENGER SEATBELTS
ADJUSTABLE TILT AND TELESCOPING STEERING COLUMN
450MM (18") LK FOUR-SPOKE CHARCOAL STEERING WHEEL
DRVR/PASS INTER SUN VISORS
INSTRUMENT PANEL AND CONTROLS
BLACK GAUGE BEZELS
WOODGRAIN INSTRUMENT PANEL-DRIVER
LOW AIR PRESSURE LIGHT AND BUZZER
(1) SINGLE BRAKE APPLICATION AIR GAUGE
PRIMARY & SECONDARY AIR PRESSURE GAUGES
INTAKE MOUNTED AIR RESTRICTION INDICATOR WITHOUT GRADUATIONS
CRUISE CONTROL - ELEC ENG, W/SWITCHES IN LH SWITCH PANEL
KEY OPERATED IGN SWITCH &INTEGRAL START POSITION; 4 POSITION OFF/RUN/START/ACC
ODO/TRIP/HOUR/DIAGNOSTIC/VOLTAGEDISPLAY 1X7 CHAR,26 WRNG LAMPS,DATA LINKED ICU3
DIAGNOSTIC INTERFACE CONNECTOR, 9 PIN, SAE J1587/1708/1939, LOCATED BELOW DASH
ELECTRIC FUEL GAUGE
PROGRAMMABLE RPM CONTROL-ELECT ENGINE
ELECTRICAL ENGINE COOLANT TEMP GAUGE
TRANSMISSION OIL TEMPERATURE INDICATOR LIGHT
ENGINE AND TRIP HOUR METERS INTEGRAL WITHIN DRIVER DISPLAY
ELECTRIC ENGINE OIL PRESSURE GAUGE
F/L XTA-2300 AM/FM/WB CD RADIO BY DELCO
(2) RADIO SPEAKERS (CAB ONLY)
MULTI-BAND AM/FM/WB/CB LH MIRROR MOUNTED ANTENNA SYSTEM
ELECTRONIC MPH SPEEDOMETER W/ SECONDARY KPH SCALE, W/O ODOMETER
ELECTRONIC TACHOMETER 3000 RPM
IGNITION SWITCH CONTROLLED ENGINE STOP
ONE ILLUMINATED ROCKER SWITCH WITH WIRE TO CHASSIS AT BACK OF CAB
DIGITAL VOLTAGE DISPLAY INTEGRAL WITH DRIVER DISPLAY ICU3
SINGLE ELECTRIC WINDSHIELD WIPER MOTOR W/DELAY AND ARCTIC TYPE BLADES
MARKER LIGHT SWITCH INTEGRAL W/HEADLIGHT SWITCH
SELF CANCEL TURN SIGNAL SWITCH W/ DIMMER, WASHER/WIPER & HAZARD IN HANDLE
INTEGRAL ELECTRONIC TURN SIGNAL FLASHER
PAINT DESIGNS
PAINT: ONE SOLID COLOR
Cab Color A: IMRON N0225HN WHITE
Chassis: BLACK HIGH SOLIDS POLYURETHANE
DEALER OPTIONS
Raw materials
Michelin tires

Holy Smokes ... When do you get to spec out the coach options... Jeepers! Ya really do need a consultant.

Where does the ermine go!

quote:

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MBE900-300 7.2L 300 HP@2300 RPM;2500GOV 860 LB/FT @ 1250 RPM

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Only 300 hp and 860 lb/ft toruqe????

Man don't you know you can NEVER have too much motor???

Even with multiple gear tranny......

Hey Don don't I know that. Here's the rub. The M2-106 chassis has a 1,000 sq/in radiator which is the limiting factor on the horsepower. The MBE926 motor can be wicked up to 330 hp and a 1,000 ft/lbs of torque, but is derated in this application.

I spoke to the Freightliner dealer who could have talked me into something bigger, but insists this combo will be excellent for my application. (RV'er not racer pulling a big trailer)

Most of the new conversions being produced are on a FL Columbia chassis's with a 450 hp. But these are setup for racers pulling triple axle 30 plus foot trailers.

The drawback with the Columbia chassis is that the cab is 2' longer and higher. Both putting a crimp in my plans. So we are sticking to the M2-106.

Here are the spec's on the Mercedes MBE 926

Number of cylinders 6/in-line
Bore 4.17 in (106 mm)
Stroke 5.35 in (136 mm)
Displacement 439 cu in (7.2 liters)
Weight 1235 lbs (560 kg)

Engine Performance

250 HP @ 2200 RPM 800 lb•ft@ 1300-1600 RPM
280 HP @ 2200 RPM 800 lb•ft@ 1300-1600 RPM
300 HP @ 2200 RPM 860 lb•ft@ 1300-1600 RPM
330 HP @ 2200 RPM 1000 lb•ft@ 1300-1600 RPM
Design
Water-cooled 6-cylinder inline diesel engines with 3-valve technology (2 intake valves, 1 exhaust valve),
turbocharging and charge air cooling, available with constant throttle engine brake (option); fully
electronic engine management with individual unit pumps and centrally arranged 7-hole injection
nozzles; injection pressure up to 32,000 psi. Engine with cooled high pressure exhaust gas recirculation.
Advantages
■ High return on investment due to high fuel economy and long service intervals
■ Long life before overhaul
■ Low operation speed for quieter operation and lower fuel consumption
■ Modern injection technology to meet exhaust emission standards
■ High power-to-weight ratio for increased payload
■ High engine brake performance for longer service brake life
■ Produces peak torque at low engine speeds where customers need it most
6 Cylinder MBE926

Wow, what a list of specs!

As you said, every single component on that chassis must be specified; surely not a task for the uninformed.

I hope this isn't an oversight, but I did notice that you didn't specify whether or not the marker lights switch was held in with left hand threaded bolts or right hand. You'd hate to have them super glue it in place.

What would be the primary reason you didn't go with the M2-112?

To be honest, I hate the look of that truck. The nose of that truck is way to squared off, just looks goofy.

If I had to do it over again, I would have done it on a Columbia which is darn near the same price as the 112 and I probably would still have the conversion today.

WOW! they even spec'd the HUCK BOLTS in the frame!

There were 14 pages of spec sheets on my Columbia when I ordered it.
I found a sales rep at Freightliner in Springfield, Illinois that knew what to spec for a motorhome. (he works with the conversion builders in Elkhart)
The dealer in OKC didn't have a clue.