Is this normal ? To much backlash?
- Thread starter kolelt
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Nate_GB
Member
Hard to say. Doesn't look overly excessive. it's hard to know because there are so many points of movement when you move the tire. Only way to know for sure would be to pull the diff and set up a dial indicator on the ring gear. Are there any adverse symptoms you are experiencing or is there any reason, aside from the tire movement, that is causing you to think the backlash is out of spec?
Ummm nothing that I can say. I mean the truck is driving perfectly. I beat on it in the woods in 4wheel and locked.
My friend did replace my diff bearings for me. Which afterwords required resetting all the gears. But he's a knowledgeable mechanic and we did use the dial tool.
I just feel like, when I go from 1 to 2nd gear. Kinda like if I bang gears. It feels like a little backlash type feeling. Hard to describe. I know driving a manual feels a little different because you have gears Vs a auto. Although if the gears would be set up wrong. I think it would of taken a dump.
Maybe I'm just a overthinker. Like they say. Don't fix it if it ain't broken.
My friend did replace my diff bearings for me. Which afterwords required resetting all the gears. But he's a knowledgeable mechanic and we did use the dial tool.
I just feel like, when I go from 1 to 2nd gear. Kinda like if I bang gears. It feels like a little backlash type feeling. Hard to describe. I know driving a manual feels a little different because you have gears Vs a auto. Although if the gears would be set up wrong. I think it would of taken a dump.
Maybe I'm just a overthinker. Like they say. Don't fix it if it ain't broken.
octanejunkie
Elite Member
The movement in that video looks reasonable to me, but you can't gauge ring and pinion gear backlash from wheel movement because transmission free play is involved. They could never be wrong enough that you would feel them slam or they would fail in short order.
The only way to check the gears, as was already mentioned, would be measuring the gears themselves using a dial caliper and marking compound and pattern the gears checking for run out. An experienced rear end shop can guestimate slop off the pinion yolk by dropping the drive shaft and feeling the gears that way, but I wouldn't rely on that alone.
If the gears are installed/patterned wrong you will know pretty quickly: they will become loud and they will wear out early, and any slop will become greatly exaggerated.
Be sure to properly break in new rear end gears to get maximum life. Usually the first hundred miles or so you shouldn't exceed 50 mph or drive for extended periods of time, allowing the gears to cool off. After the break in period, change the gear oil. It's always best to follow the instructions that came with the gears as each mfgr/vendor heat treats differently and recommends different break in procedures.
The only way to check the gears, as was already mentioned, would be measuring the gears themselves using a dial caliper and marking compound and pattern the gears checking for run out. An experienced rear end shop can guestimate slop off the pinion yolk by dropping the drive shaft and feeling the gears that way, but I wouldn't rely on that alone.
If the gears are installed/patterned wrong you will know pretty quickly: they will become loud and they will wear out early, and any slop will become greatly exaggerated.
Be sure to properly break in new rear end gears to get maximum life. Usually the first hundred miles or so you shouldn't exceed 50 mph or drive for extended periods of time, allowing the gears to cool off. After the break in period, change the gear oil. It's always best to follow the instructions that came with the gears as each mfgr/vendor heat treats differently and recommends different break in procedures.
Yeah I agree. If gears aren't set right. Or in the proper tolerance. They would give out sooner then usually. Especially when off roading.
I was curious you know. I'm a over thinker lol.
I don't remember. It was in the tolerance
