Clearance around bags
 

I am installing some Slam Specialties SS-7 bags in my 1949 Chevy 3600.

Thunderbird IRS in the back, Scott Danforth Cross Member in the front.

https://kustomcreations.smugmug.com/..._DSC5194-L.jpg

I am setting the back up now and I am a little tight on space with the 7" bag. I plan to open up the notch a little since I have room available.

https://kustomcreations.smugmug.com/..._DSC5222-L.jpg

https://kustomcreations.smugmug.com/..._DSC5225-L.jpg

Is there a rule of thumb.....or a guideline on how clearance you should have around the bag to prevent chaffing or a rub?

Thanks in advance?

Re: Clearance around bags
 

I try and make sure I have a 1/2 inch. On you welds, slow down on the travel and maybe turn up the heat. The ones on the sides look like they have little penetration.
Jimmy

Re: Clearance around bags
 

Thanks for the input.

Re: Clearance around bags
 

I was always told a finger gap between the bag and anything it could touch.Anything the bag rubs on could rub a hole in it over time since its rubber.

Re: Clearance around bags
 

That is what I am shooting for.

Thanks!!

Re: Clearance around bags
 

Why not go w/a smaller OD bag? The 7" bag is better suited for the front weight bias on a truck.

Re: Clearance around bags
 

That was an option that I thought about as well.

I just really did not want to go through the hassle of selling these bags, buying new, etc.

Re: Clearance around bags
 

Seems easier vs the option of cutting & opening up the notch more since it appears a little thin as-is (might just be the angle on the pics).

Re: Clearance around bags
 

I am not too worried about the integrity of the notch, but you have me thinking.

Is there a ride quality difference between the two bags?

Re: Clearance around bags
 

Yes, there can be a difference but 'how much' is subjective. Some guys run the larger bags in the rear & use less pressure to achieve ride height for a better ride. I tried that on my 68 (7" bag equivalent) on the rear & found I was @ <30psi for my ride height. It basically had no spring rate @ that low of a pressure & the result was a very bouncy ride quality. By swapping to smaller bags I had to increase the inflation pressure to achieve the same ride height. Now I was @ ~40psi & no more bouncy ride (same shocks used for both).

Some guys may not notice. I definitely could.