|
Are you spinning it by hand, or do you have all of the tires off the ground and putting the trans in gear and spinning the tires that way.
Assuming the front diff is open, it would be pretty normal for the driveshaft to spin and only one of the front tires to spin. To do some more checks on the front axle:
- put t-case in 2wd
- have both front tires off the ground
- have the hubs locked in
- spin driveshaft by hand - one or both front tires should spin
- spin one of the front tires by hand, one of the below will happen
- if open diff
the other front tire will spin the opposite way
the driveshaft will spin, opposite tire will not
- if limited slip/posi
the other front tire will spin in same direction
AND the driveshaft will spin
Also take a look at the u-joints in the front axle shafts (look through the knuckle) and make sure they are not loose.
After that look at the u-joints in the front and rear driveshafts for any play.
If the noise seems to be in the t-case, then it could be the chain. If it's loose or worn it can still engage the front tires, but make noise. Though I commonly see shifter problems also causing a grinding noise...shifter is out of adjustment and therefore not full engaging the gears in the t-case and causing the grinding.
|