Engineering Analysis · Closed
OVERLOAD
Manufacturer: Tiffin Motorhomes, Inc.
What NHTSA is examining
Summary of information from manufacturer:tiffin uses the chevroletastro mini van for 21 foot micro-mini allegro motorhome.tiffinreplaces the rear axle of the stock astro with a chevrolet c-10light truck rear axle assembly to increase its weight rating to7,000 pounds. (astro has a 5,600 pound gvwr).analysis:the allegro is fabricated without durability or completebrake testing.tiffin loads a stack of 4'x8' plywood sheets on theallegro chassis rear frame rails for a few hours to check for sag.if no permanent set is found the vehicle is deemed satisfactory at7,000 pounds gvwr.status:closing memo to (h) 9/9/87.===
Vehicles under investigation
Source: NHTSA Office of Defects Investigation records, updated daily. An investigation is not a determination that a defect exists; many probes close without a recall.