mg53

I installed my 4.10 ring and pinion into my 03 gmc this weekend and i hear that it is making a whining noise when i go between the speed of 45 and 55 mph, and thats it. No other time do i hear a noise! It is not loud and i have to cut the radio off and pick the windows up to hear it. I installed it to the spec that the company (motive gear) sent me. I set my backlash to .010 and set my pinion load to +/-2 just like they said. It also track like the picture showed in the diagram when i put the marking paint on the gear. Also i changed the bearings that the kit came with. I'm just wondering if this is normal and the noise will go away? I do not even have 100 miles on the gears yet, and i do not want to ruin them.

mg53

Someone got to know something!

BLACKND

iTrader: (5)

Just my 2 cents, but I think even with the perfect install, your going to get a certain amount of whine from aftermarket gears. If you listen hard enough even some stock gears whine a bit. If its just a low whine, I wouldn't worry about it. My Richmond 3.90's whined something fierce in my old crew cab. I doubt the noise will go away completely, but will most likely soften up slightly.


If you are confident that you installed everything correctly.

06sierra5.3

iTrader: (7)

i noticed a whine in my stock 3.73 gears at certain speeds at a certain throttle. i used to be a tech for jaguar, every single car had a tiny whine at certain speeds with light throttle. its amazing what some old people can hear. anyway i think i a little whine will be normal expecially with aftermarket gears.

Cuerva

It's normal and very common. You'll be ok.

negativeswitches

iTrader: (15)

wait untill they break in and then check your backlash

i say go back in after 5000 miles if it still bothers you then

otherwise

your fine

xsports33

iTrader: (1)

It's normal. Add some friction modifier to quite it down. It worked wonders on my 4.56s. Even though GM doesnt spec the additive, it doesn't hurt

mg53

Alright, thanks for the comments! I feel alot better about my slight whine now. Just wanted to make sure that it was not something serious