jimh425 wrote:
Avid Fox wrote:
All builders use spring loaded FRONT tie downs, not backs.
Not true. My fastguns all have springs.
The sample size is so tiny that I don’t think we can come to a conclusion about the cause. We are left with guesses and a lot of variables.
I think GM was the first to have a report of crowned bed. I don’t remember any damage attributed to it though.
As they say “ the devil is in the details “ . The Torklift fast guns are used with frame mount attachments , which are fairly rigid , so the rears are also spring loaded . The Happijac system uses the rear bumper for the rear turnbuckle , which is fairly flexible so used a rubber bumper . The front turnbuckle is spring loaded because the mount is attached to the bulkhead and the frame making it fairly rigid . The Torklift equivalent of the Happijac turnbuckles are called Anchor Guard and are made the same as Happijac and only the front short one have springs , the long rears have rubber bumpers .
It also begs the question why Torklift made an exact copy of the turnbuckle that is only used in their competitors design :h
