Need help with track width on cabovers

[Goodwrench3]

Hi all:

I'm still picking at my AMT Freightliner cabover project and have a question.  Are track widths for the rear drives and the front wheels supposed to be the same width ?  I.e.  width measured to the outside of the rear duals vs. width measured to the outside of the front wheels ?

I know I need to narrow up the front axle on the AMT kit.  

Here are two photos (a left and a right) showing the width of the rear wheels compared to the width of the cab -- note that I lined up the left side even with the side of the cab.  You can see the right side outer wheel extends about 1/2 a tire beyond the right side of the cab.  

I was just wondering if it is normal for the rear track width to be wider than the front  ?

 

[lapazleo]

Generally the steer axle is narrower than the drives.

[astroracer]

The rear width will depend on frame and suspension widths, gage by that, not the front track. Usually a wider rear track will help with stability on a tall box. I wouldn't worry about it, really not an issue.

Mark

[lapazleo]

All standard highway trucks have a track width on rear axles that make overall width between 95.5" and 96" it has nothing to do with frame and suspension widths. Like I said before steer axle track is generally a little narrower than rear axle track. Since you have to narrow the front axle on the AMT Freightliner any way a track slightly narrower than the rear axles will look correct maybe a scale 1 to 2 inches.

[Muncie]

The thing that tricks our eyes with the AMT White Freightliner COE kit is the width of the cab.  The cab is a 61 series at 90.38" wide which has not been commonly seen on the road since the late 70's. They are rarely, rarely, rarely ever seen anymore.  In the mid 70's, Freightliner introduced the 71 series which is wider at 94.38" and included the rubber fender extenders that cover the front tires.  The cab was widened to provide adequate room for the larger radiator required for the modern higher horsepower engines.

Edited March 12, 2017 by Muncie

[Goodwrench3]

Thanks all for the information !

 

[lapazleo]

  On 3/12/2017 at 3:40 PM, Muncie said:

The thing that tricks our eyes with the AMT White Freightliner COE kit is the width of the cab.  The cab is a 61 series at 90.38" wide which has not been commonly seen on the road since the late 70's. They are rarely, rarely, rarely ever seen anymore.  In the mid 70's, Freightliner introduced the 71 series which is wider at 94.38" and included the rubber fender extenders that cover the front tires.  The cab was widened to provide adequate room for the larger radiator required for the modern higher horsepower engines.

You are correct sir. It does add to the optical illusion. However the kit axle is to wide as is but good point none the less.