So I finally got my new gears installed (4.56) and I want to make sure I break them in properly. How should I do this to ensure that both the front and rear get broken in?
Breaking in new Ring and Pinion gears
- Thread starter Toshi38
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- #3
I heard a loud bang and now I can't go forward... is this normal?
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exactly what i was going to suggest!
Absolutely. Don't worry about it.
Continue with the burnouts until you hear a matching bang from the other end of the truck.
You must do your 4wd burnouts in reverse until you hear a loud bang then go forward. For Toshi "breaking in" has a whole new meaning.
- Thread starter
- #7
How much rotational movement should I have in my rear diff when I turn the pinion flange with the wheels on the ground?
I have a lock-rite back there... I know I had play before (roughly the same amount) but I just want to make sure that I have everything good...
I have a lock-rite back there... I know I had play before (roughly the same amount) but I just want to make sure that I have everything good...
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Thats a hard way to measure, there could be wear in axle shaft and other parts, true measure of the back lash is with third out and dial indicator...
There is a proper break in and I cannot remember exactly how it goes...
Plus I am way to hung over from the wifes xmas party, brain no worky. Oh and I am at work right now..
Rob
- Thread starter
- #9
Ya... I know my guy measured the backlash when he did the diff with the 3rd out. I just was putting it together and felt like there was a lot compared to my dodge/ect... wasn't sure if it was a cruiser thing. Front and back are the same so I'm guessing they're both in spec....
Do you have a locker in the front as well?? It seems strange that they are the same backlash front to rear. The locker will add some slop between the pinion turning and the axles shafts turning BUT backlash is measured between the pinion and ring gear.
Whatever though, just run it. No break in procedure for a light weight 40. More so for high horsepower rigs towing stuff. Just drive it, you'll be just fine.
Let us know how the 4.56:1's work for you.
Whatever though, just run it. No break in procedure for a light weight 40. More so for high horsepower rigs towing stuff. Just drive it, you'll be just fine.
Let us know how the 4.56:1's work for you.
The only break in process i ever heard of was doing some mild figure 8's in a parking lot and some people think it is a good idea to change the gear oil after a week or so in case there are some fine filings from the breaking in.
http://www.ringpinion.com/TechnicalHelp/FAQ.aspx#37
http://www.4x4now.com/gt0999.htm
http://www.richmondgear.com/01instructions.html
There's a few ideas. I've never had a new set to break in, so can't offer any experience there.
If you do a search of "ring and pinion break in 4x4" there is some good discussion other there.
hth's
gb