What would cause my tires to start spinning on dry pavement? differential fluid? tire weights? tires have solid tread on them only a year old.

 

Too much torque!

Seriously, if your tires are losing traction on dry pavement, you're using too much throttle. Lay off and go easy.

Or get DOT approved slicks

 

Yep, too much skinny pedal and Ford torque

 

.....Yes differential fluid on the road will cause wheel spin. If you spin the tires with enough speed I suppose its plausible to fling off the weights. You could try staying out of the secondaries upon start up?

 

Bet a lot of guys only wish they had your problems!

 

You might want to watch the drag races on the weekend, it will give you a really good explanation of wheel spin! Remember trucks are light in the rear end by design and mashing the petal to the metal is normally going to produce reduced traction, hence wheel spin.

A long way to say, stop flooring it when you start out!

 

Are you sure the tires are slipping and it's not the clutch or transmission?

 

Sure you're not bragging about doing burnouts? Haha.

Just keep off the pedal, and/or throw a little weight in the back.

 

lol well its not only on take offs i also have the issue if im up to speed and doing a steady pace

 

Is it a manual or an automatic?

 

yea your lucky i dont think my 4.9 could spin them on dry pavement if it wanted to (only time it does it is when i am stopped and going to turn and i mash it, and on these lovely ice covered iowa roads

 

Something is slipping, and dude, it ain't your tires!

 

^^^^ i'm going with this

 

Agreed. OP, please provide further details. It's difficult to fathom that the tires are breaking traction on dry pavement as you cruise along at a steady pace.

 

Also agreed. Even my 460 truck couldn't break the tires loose during cruise. You have something else slipping, either your clutch if manual trans, or one of your clutches or bands if automatic trans.