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-   -   Frame width on 21 (http://www.escapeforum.org/forums/f7/frame-width-on-21-a-14796.html)

rubicon327 02-24-2019 06:31 PM

Frame width on 21
 
Does anyone happen to know (or can they measure) the frame width inside rail to inside rail on a newer (Gen 2) 21? Looking at the BAL Retract-A-Spare product and wondering if it will work for relocating a tire from the back to underneath. Frame width needs to be in the 52-72Ē range. This needs to be done to locate a mini-split heat pump condenser on the rear. Any other thoughts on tire relocation and method is welcome.

BAL - Innovative Products for the RV Industry

wetzk 02-24-2019 07:01 PM

I think Mr. Bennett did what you are thinking about awhile back.
Or was discussing it

Brian B-P 02-24-2019 07:26 PM

Jim described his spare tire relocation in 5.0TA Cargo Box. Although the 5.0TA and 21' have different frame rail sizes, they are otherwise the same behind the tongue, so the inner spacing should only be an inch or two different between the models.

He used a Lippert winch, rather than the BAL winch. In his case, half of the winch body plus a 21 3/4" extension and a ratcheting box end wrench was very close to half of the frame rail inside spacing (assuming that Jim centred the tire), so it seems unlikely that the frame rail spacing is as much as 52"... but maybe.

If the frame rail spacing isn't wide enough, the BAL carrier could probably be shortened by cutting one or both of the channels.

There are also swinging and telescoping carriers commercially available, and either style could be custom-built if desired to work better with the dimensions and configuration of the Escape frame and body.

Eggscape 02-24-2019 09:40 PM

1 Attachment(s)
Under the tongue would off set the weight...post 222
http://www.escapeforum.org/forums/f8...-12918-23.html

rubicon327 02-25-2019 11:33 AM

Quote:

Originally Posted by Eggscape (Post 281517)
Under the tongue would off set the weight...post 222
http://www.escapeforum.org/forums/f8...-12918-23.html

Ed: Great idea except the owner I am working with has the front storage box as well as the standard dual 20# propane rack. This would make installation of something much more problematic under the A-frame.

Eggscape 02-25-2019 12:13 PM

Once the batteries and tanks with cover are in place I canít see the tire...so it would be similar to having the box. It is all done from the underside as would most under mounts however physically closer.
I always thought having the box would make it easy to attach the bolt. Use a piece of 3/4 plywood in the bottom of the box to span to where there are supports...then a carriage bolt down through the plywood. You could also use threaded rod with nuts on both sides.

Greg A 02-25-2019 02:00 PM

I reread the spare tire post and maybe I missed it. What is the clearance from the bottom of the tire to the street when you mount under the tongue??

Brian B-P 02-25-2019 02:36 PM

Quote:

Originally Posted by Greg A (Post 281587)
What is the clearance from the bottom of the tire to the street when you mount under the tongue??

The top of the coupler is the top of the ball, and essentially flush with the top of the tongue frame. The tire can fit between the frame rails in the tongue area, so the top of the tire is flush with the top of the frame (if you don't have the Escape factory optional storage box). The tire is essentially 8" wide, which is wider than the frame rail is tall, so the tire hangs below the frame and the bottom face of the tire ends up 8" below the top of the ball, so ground clearance is top-of-ball height minus 8".

If the top-of-ball height is 19" (for instance), then the clearance under the tire is a bit less than 11".

Brian B-P 02-25-2019 02:40 PM

Quote:

Originally Posted by Eggscape (Post 281517)
Under the tongue would off set the weight...post 222
http://www.escapeforum.org/forums/f8...-12918-23.html

The page link doesn't get to the right page of the thread for a user which has the posts-per-page preference set to anything other than the default (10)... so this links directly to the relevant post:
Modifications to Eggscape, post #222: Tongue work done on Eggscape

Brian B-P 02-25-2019 02:55 PM

Quote:

Originally Posted by rubicon327 (Post 281562)
Ed: Great idea except the owner I am working with has the front storage box as well as the standard dual 20# propane rack. This would make installation of something much more problematic under the A-frame.

Quote:

Originally Posted by Eggscape (Post 281574)
Once the batteries and tanks with cover are in place I canít see the tire...so it would be similar to having the box. It is all done from the underside as would most under mounts however physically closer.
I always thought having the box would make it easy to attach the bolt. Use a piece of 3/4 plywood in the bottom of the box to span to where there are supports...then a carriage bolt down through the plywood.

Unless the design has changed, the factory optional front storage box is not flat, but formed to fit over the frame rails, dropping down on each side. Does the bottom of the box drop down below the top of the frame between the frame rails? That would force the tire to be mounted lower.

If the shape of the bottom of the box works, the box could be a good combination with a winch, since the winch could be inside the box (with a shaft sticking out the side of the box?) and protected from elements.

With a lot of stuff on the tongue, one might not want the tire mass there as well; in this respect, further back under the body would be more desirable. Since against the trailer floor and this position under the tongue are the same height, the further back the tire is place, the less problem there is with ground clearance... because clearance is only an issue when a dip in the road causes the hitch to get closer to the ground while the distance from frame to ground near the suspension stays approximately constant.


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