The Brophy Stake Pocket Mounted Camper Tie Downs # TDSF includes the following hardware:
8- 5/16 x 1 1/4 sheet metal screw
4- 5/16 flat washer
4- 5/16 hex nut
4- 5/16 x 1 hex head bolt
To complete your setup you'll also need some turnbuckles, like the Brophy Basic Turnbuckles w/ Hardware for Camper Tie-Downs # TDHP. view full answer...
The Shackle Strap # TRSL313 does come in a quantity of one, so the price is for each individual strap.
For a single axle trailer you will need a total of four shackle straps.
I have added a link to a video review of this strap for you to check out as well. view full answer...
The Timbren Axle-Less Trailer Suspension System part # TASR7KS01 that you referenced has a shipping weight of 148 lbs. They are shipped using standard UPS methods. view full answer...
There are other factors involved including ambient temperature and elevation and so on but I am confident that by adding transmission cooler # D13105 to your 1999 Ford F-250 you could see a drop of 10 to 20 degrees in the transmission fluid temperature. I have linked a video showing an example installation for you.
I had a smaller one on a smaller vehicle and the fluid temp dropped 10 to 12 degrees so I know that it would lower it more on a truck that has more fluid capacity and more room... view full answer...