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So I know it's been a long time since I changed out gears in an axle but something hear does not make sense to me, hopefully you guys can help me out.
I've got a 1974 Ford f250 with the original Dana 60 rear and a Dana 44 front from a 69. I'm changing the gearing from 4:10 to 4:88. Got the new gears and bearing kits for both axles. I froze the pinions and heated up the bearing for the inner pinion bearing but when I went to test fit the outer bearing on the new pinions I've found that the inner race diameter is about .001-.002" smaller then the pinion diameter. I've double and triple checked what bearing number should go with this axle and gears and they're the right part number but shouldn't the outer bearing slide on and off the pinion without a darn press? Has anyone else run into this? Should I freeze the pinion right before installing it?? Any help would be appreciated.
So I know it's been a long time since I changed out gears in an axle but something hear does not make sense to me, hopefully you guys can help me out.
I've got a 1974 Ford f250 with the original Dana 60 rear and a Dana 44 front from a 69. I'm changing the gearing from 4:10 to 4:88. Got the new gears and bearing kits for both axles.
I froze the pinions and heated up the bearing for the inner pinion bearing but when I went to test fit the outer bearing on the new pinions I've found that the inner race diameter is about .001-.002" smaller then the pinion diameter. I've double and triple checked what bearing number should go with this axle and gears and they're the right part number but shouldn't the outer bearing slide on and off the pinion without a darn press? Has anyone else run into this? Should I freeze the pinion right before installing it?
Which axle are you asking about, the front Dana 44 or the rear Dana 60?
Which axle are you asking about, the front Dana 44 or the rear Dana 60?
It's on both the Dana 44 and 60.
I know the outer bearing isn't press fit because you can't put the outer bearing on till your installing the pinion in the axle. Plus you have to be able to be able to remove the pinion to adjust your backlash
It's on both the Dana 44 and 60.
I know the outer bearing isn't press fit because you can't put the outer bearing on till your installing the pinion in the axle. Plus you have to be able to be able to remove the pinion to adjust your backlash
Yes it is and why you get a second new bearing and hone out the inner race so it will slip on & off so you can set up the gears with shims then press the good bearing on.
Depending how the pinion bearings are set up and the shims you have you can place them under the outer race to move the pinion out also.
On Dana 20's IIRC this is how you have to do it as they no longer make the shims for the pinion but do for the outer race that fit a different model axle.
Dave ----
It's on both the Dana 44 and 60.
I know the outer bearing isn't press fit because you can't put the outer bearing on till your installing the pinion in the axle. Plus you have to be able to be able to remove the pinion to adjust your backlash
The pinion depth has nothing to do with backlash. Backlash is set with thin shims behind the carrier bearings. You should always fit your bearings to the carrier, same with the pinion. If you try to press the bearing off the pinion, it's cage will more than likely fail if the bearing was not fitted for clearance.
05-24-2019, 11:19 PM
