Isuzu npr 4wd

gator70

Active member
It wasn't cheap, about 1000 euros, I have the plans somewhere


Thank you for being honest. This helps me alot.

My retractables steps, with a aluminum slide out platform, steps following the side of the habitat. Parts alone $520-$540

My labor, and a small charge for a aluminum welder to "tack" the platform aluminium beams to each other. Full welding not required. Since in addition I use pop rivets. This will be a 500lb slide capacity.
 

gator70

Active member
Decisions to build – buy a expedition truck

Goals when deciding what platform, and how it should be used.



My goals



  • Not longer than 23ft

  • GVW 14000lbs

  • Good ground clearance

  • Reasonable fuel economy

  • Seating for more than 3

  • Sleeping for more than 3

  • Able to be off grid for 14-21 days self supported

  • Mechanically easy to fix, without overly complicated features

  • Four season capable

  • At least 100K miles durability before rebuild

  • No rust and with good maintenance history
 

gator70

Active member
Rear bumper fabrication

Requirements

  • One spare tire swing away carrier

  • Two tail lights

  • Tow hitch

  • H-lift jack mount

  • Bracket for two 20lb propane tanks
The habitat is about 86" wide

Tire carrier mount is installed last, due to tail light placement

When mounting bumper on the rear of the Isuzu frame, the factory has left and right bumper brackets that bolt to the frame (four bolts each side). It seems logical to use these, then weld fabricated arms to them with 8 inch 3/16 plate triangular gussets.

The bumper has two 2"X3" 1/4 inch tubes welded to the back side for strength.

Bumper was sourced from smaller school bus.
 

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gator70

Active member
Drivers seat replacement

Attached is a diagram how the factory seat looks and works

The seat cushion with frame lifts off for engine access underneath.

I have a replacement seat. Very nice

1) I consider removing the factory bottom seat frame and asking a upholstery shop to replace the cushion with the one from my replacement seat attaching it to the factory seat frame.
2) I plan to retain the slides and seat belt bottom mount
3) For mounting the back of the seat, it seems it all is specific to retaining the left and right hinges. Then pulling back the upholstery in those areas on the replacement seat, and fabricating the left and right mount for the factory seat hinges.

How I approach this engineering, is the discussion I hope to initiate.
 

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gator70

Active member
CAB rear access door

I have the access door I can buy. (24"x30")

What is the suggestion how I merge this with the cab rear sheet metal?
 

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