Kronos Does the Kronos 7075 aluminum diff use different bearings?

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Newkronosuser2709

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Are the 7075 aluminum diff for the Kronos bigger bore size around the diff bearings? I’m replacing my stock diffs w the upgraded xtr diff and the bearings don’t fit they seem a lil tight and I can’t get them to go all the way in so I can install the outdrive cup. And reassemble the dif. Do I need bigger bearings? Thanks all

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Haven't used them so not positive but can't imagine they'd be different considering the bearing od still has to fit the stock stuff, toss the bearings in your pocket and the diff in the freezer for 20 minutes, probably slip right on, I do this with chainsaw crank bearings all the time
 
AngrySection8 said:
Haven't used them so not positive but can't imagine they'd be different considering the bearing od still has to fit the stock stuff, toss the bearings in your pocket and the diff in the freezer for 20 minutes, probably slip right on, I do this with chainsaw crank bearings all the time
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So one shrinks and one expands??
 
Yeah, on saws I normally heat the bearing with a heat gun as well but considering we're dealing with aluminum here I'm guessing you won't have to, plus I'm not sure how much little bearings with seals can handle so best to start off safe
 
AngrySection8 said:
Yeah, on saws I normally heat the bearing with a heat gun as well but considering we're dealing with aluminum here I'm guessing you won't have to, plus I'm not sure how much little bearings with seals can handle so best to start off safe
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you will fry the oil in the bearing with a heat gun better to freeze the bearing and heat the diff up
 
hobo said:
you will fry the oil in the bearing with a heat gun better to freeze the bearing and heat the diff up
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That'll give the opposite effect, the bearing will shrink and the diff would expand making it more difficult to fit. Not that it matters these aren't a press fit design, I'm sure it's just the thickness of the coating on the diff that's causing the issue so simply freezing the diff alone is probably more than adequate
 
My guess is the black anodizing is preventing the bearing from sliding on. You can try freezing the cup, alternately you can use some fine grit emery cloth to take away some of the anodize too..just be careful not to remove too much.
I have to believe the bearing sizes are the same.
 

KnowAir said:
My guess is the black anodizing is preventing the bearing from sliding on. You can try freezing the cup, alternately you can use some fine grit emery cloth to take away some of the anodize too..just be careful not to remove too much.
I have to believe the bearing sizes are the same.
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exactly what was happening I lubed up the shaft and slid it one side at a time until i was able to Install the drive cup. All good thanks guys
KnowAir said:
My guess is the black anodizing is preventing the bearing from sliding on. You can try freezing the cup, alternately you can use some fine grit emery cloth to take away some of the anodize too..just be careful not to remove too much.
I have to believe the bearing sizes are the same.
Click to expand...
 
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