New gears and sure-grip question
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Rookie
Joined: Jun 2009
Posts: 72
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From: Wewahitchka, Fl
New gears and sure-grip question
Ive got a 96 Dakota 5.2L 5 speed with 8.25 rear end. I just had 4.10 gears and Mopar Sure-grip installed. Should I break the new stuff in? When should I change it? What kind of oil should I use? Its a little noisey right now, is it suppose to be?
Thanks
Thanks
Champion
Joined: May 2008
Posts: 4,839
Likes: 5
From: Apex, NC
Well I don't know any way to break it in besides just drive it and don't try any hard off the line launches.
Does it clunk when you start from a stop or is the noise more of a whine? I assume there is LSD friction modifier in the fluid cause if not the clutches will chatter.
Does it clunk when you start from a stop or is the noise more of a whine? I assume there is LSD friction modifier in the fluid cause if not the clutches will chatter.
Captain
Joined: May 2009
Posts: 619
Likes: 0
From: Nebraska
Well....I would check on the manufacturer and the fluid type, then let us know. Also, like 318 said, your gears arent set yet, so dont get happy on the skinny pedal unless you wanna pay for gears again.
Champion
Joined: May 2008
Posts: 4,839
Likes: 5
From: Apex, NC
When does said whine occur? All the time, or only while accelerating, or only while deaccelerating? Here is what the FSM says about possible noises:
also cause a snapping or a knocking noise.
is usually not noticeable at speeds above 30 mph.
GEAR NOISE
Axle gear noise can be caused by insufficient lubricant.
Incorrect backlash, tooth contact, or worn/damaged
gears can cause noise.
Gear noise usually happens at a specific speed
range. The range is 30 to 40 mph, or above 50 mph.
The noise can also occur during a specific type of
driving condition. These conditions are acceleration,
deceleration, coast, or constant load.
When road testing, accelerate the vehicle to the
speed range where the noise is the greatest. Shift
out-of-gear and coast through the peak-noise range.
If the noise stops or changes greatly, check for insufficient
lubricant. Incorrect ring gear backlash, or
gear damage can cause noise changes.
Differential side and pinion gears can be checked
by turning the vehicle. They usually do not cause
noise in straight-ahead driving. These gears are
loaded during vehicle turns. If noise does occur during
vehicle turns, the side or pinion gears could be
worn or damaged. A worn pinion gear mate shaft can
Axle gear noise can be caused by insufficient lubricant.
Incorrect backlash, tooth contact, or worn/damaged
gears can cause noise.
Gear noise usually happens at a specific speed
range. The range is 30 to 40 mph, or above 50 mph.
The noise can also occur during a specific type of
driving condition. These conditions are acceleration,
deceleration, coast, or constant load.
When road testing, accelerate the vehicle to the
speed range where the noise is the greatest. Shift
out-of-gear and coast through the peak-noise range.
If the noise stops or changes greatly, check for insufficient
lubricant. Incorrect ring gear backlash, or
gear damage can cause noise changes.
Differential side and pinion gears can be checked
by turning the vehicle. They usually do not cause
noise in straight-ahead driving. These gears are
loaded during vehicle turns. If noise does occur during
vehicle turns, the side or pinion gears could be
worn or damaged. A worn pinion gear mate shaft can
also cause a snapping or a knocking noise.
BEARING NOISE
The axle shaft, differential and pinion gear bearings
can all produce noise when worn or damaged.
Bearing noise can be either a whining, or a growling
sound.
Pinion gear bearings have a constant-pitch noise.
This noise changes only with vehicle speed. Pinion
bearing noise will be higher because it rotates at a
faster rate. Drive the vehicle and load the differential.
If bearing noise occurs the pinion rear bearing is
the source of the noise. If the bearing noise is heard
during a coast, front bearing is the source.
Worn, damaged differential bearings usually produce
a low pitch noise. Differential bearing noise is
similar to pinion bearing. The pitch of differential
bearing noise is also constant and varies only with
vehicle speed.
Axle shaft bearings produce noise and vibration
when worn or damaged. The noise generally changes
when the bearings are loaded. Road test the vehicle.
Turn the vehicle sharply to the left and to the right.
This will load the bearings and change the noise
level. Where axle bearing damage is slight, the noise
The axle shaft, differential and pinion gear bearings
can all produce noise when worn or damaged.
Bearing noise can be either a whining, or a growling
sound.
Pinion gear bearings have a constant-pitch noise.
This noise changes only with vehicle speed. Pinion
bearing noise will be higher because it rotates at a
faster rate. Drive the vehicle and load the differential.
If bearing noise occurs the pinion rear bearing is
the source of the noise. If the bearing noise is heard
during a coast, front bearing is the source.
Worn, damaged differential bearings usually produce
a low pitch noise. Differential bearing noise is
similar to pinion bearing. The pitch of differential
bearing noise is also constant and varies only with
vehicle speed.
Axle shaft bearings produce noise and vibration
when worn or damaged. The noise generally changes
when the bearings are loaded. Road test the vehicle.
Turn the vehicle sharply to the left and to the right.
This will load the bearings and change the noise
level. Where axle bearing damage is slight, the noise
is usually not noticeable at speeds above 30 mph.