Tire Speed Ratings
 

Should one be worried about such things or are they more of a suggestion, cause Ive looked Into slick but bot too many can hold the weight of our trucks.

For drag racing I wouldn't get too worried about speed ratings because you would only be exceeding the rating for a matter of seconds, but for extended periods of high speed driving I'd want to have the proper speed rating. Just my opinion, I'm not an expert on racing or passenger/LT tires. :c:

I think most tires for our trucks are rated around 90-100 mph. Like tiremann said, as long as you're not holding those speeds for excessive amounts of time, it shouldnt be a problem.

Personally, if you're tires are only rated for say 98mph, and you trap @ 115, I don't think you have anything to worry about.
Tire Tech Information - How to Read Speed Rating, Load Index & Service Descriptions

I just make sure that my tires are LOAD RANGE E, for 3/4 & 1 ton trucks:tu:

Cant wait til I get 16" wheels and can run 10 ply tires again. They last so much longer than these 6 plys Im running now.

This is the tires I bought, & I like them PIRELLI - Scorpion STR

for a street slick we used a 30in m and h. works really well

Im goin 245/75/16 (about a 31") as soon as some money comes in