When looking at used trucks is there an easy way to tell which gears are in the rear end. On e-bay they often post a picture of the sticker in the door frame. Is the info there, and if so how do you interpret it?

Pete

 

The only reliable way without pulling off the cover and counting teeth is to mark the drive shaft and rotate it with one tire off the ground and count the number of driveshaft revolutions it takes to make one turn of the wheel. Jack up both wheels for a posi if your that lucky. You never know if the gears have been changed so you shouldn't trust the tag or door on older models.

 

but yes there is an easy way if not changed. for 94.5-97
35:4.10
39:3.55
c5:4.10 ls
c9:3.55 ls
cant really comment on sd's but i think most have 3.73 ratio for 99-03 trucks

 

I would only reccomend limited slip if you are going to actually use it. For the added stress it puts on the front end, for a pavement pounder I wouldn't want it. I know several people who buy 4x4 pickups and have to have LS diff's, but never get in a spot enough where it is needed. I would like to have it, because when she gets the hubs locked in, it needs to go someplace, bad.