I know that new gears will whine for a little while, I'd just check you fliud level first off

/wwwthreads_images/icons/cool.gif Big Ed
'88 YJ, 4" susp,3" body,33's,283 Chevy V8,TH350,4.11's,D30,D35c

 

Sorry it should have read 135000km (aprox.90000miles) on the gears. The fluid level should be good, I havn't had any leaks.

Aaron.

 

Did you put the shims back in the same location they came from? They are different and mixing them up will change your backlash.

 

To check if you're pinion gear is still centered on your sun gear, put some grease on your sun gear (enough to completely cover several teeth) and twist the driveshaft back and forth a few times so that the pinion gear leaves a pattern in the grease. Check out the pattern and see it it is centered perfectly on the sun gear.

/wwwthreads_images/icons/cool.gif Big Ed
'88 YJ, 4" susp,3" body,33's,283 Chevy V8,TH350,4.11's,D30,D35c

 

Just a Thought.. How are the u-Joints??? I had the Front (double Cardan) u-joint on my rear driveshaft die, and i Swore up and down it was a Gear problem. Wouldn't have even found it if i hadn't pulled the driveshaft, to pull the pinion gear.....Ohhh well

Also, how about bearings???

just a couple of thoughts
Good Luck
BJ

to hell with it, lets go wheelin'

 

From what you describe my first guess would be pinion bearings. If the noise is high pitched and most noticeable at lower speeds ( like around 25 mph) when accelerating it is usually the pinion bearings. If you had just put in your gears I'd say the preload was off, but as it is I'd almost certainly say pinion bearings are worn.

My other car is a BULLDOZER

 

I have not touched the gears at all. They have never been out. The noise starts at about 20mph and is extermely loud at 60mph.

Aaron.