pinion shims

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pineneedle

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I am assembling the rear axle for my '67 Scout. The axle is a 1970 Dana 44. It came to me as an empty housing, and so I have to set up the gears. I will have to do the pinion depth by fit and try because I don't have a depth gauge. Since there was no previous pinion locator shim pack, I am starting from ground zero. Can anyone give me a ballpark figure for the locator shim pack? With a starting point, I can zero in on it more easily. The pinion is engraved "0".

Pineneedle
 
I've only set-up d-44 axles that had existing gearsets in them. So I used the original shim pack sizes (new shims, though).
Why not give a place like randy's ring & pinion a call or e-mail?

And a tip: make set-up bearings for the carrier, and a set-up inner race for the inner pinion bearing. For the inner pinion bearing race: slightly grind down the outside of the race so it slips in and out of the housing pocket.
 
pineneedle said:
I am assembling the rear axle for my '67 Scout. The axle is a 1970 Dana 44. It came to me as an empty housing, and so I have to set up the gears. I will have to do the pinion depth by fit and try because I don't have a depth gauge. Since there was no previous pinion locator shim pack, I am starting from ground zero. Can anyone give me a ballpark figure for the locator shim pack? With a starting point, I can zero in on it more easily. The pinion is engraved "0".

Pineneedle
Click to expand...

Start with .055 worth of shim behind the inner pinion race. Start with about the same amount of shim on the outer bearing to build preload. As for the carrier shims put about .060 on each side and see if that feels like enough preload. From there you can move them from side to side to adjust for back lash.

erik vanrenselaar said:
I've only set-up d-44 axles that had existing gearsets in them. So I used the original shim pack sizes (new shims, though).
Why not give a place like randy's ring & pinion a call or e-mail?

And a tip: make set-up bearings for the carrier, and a set-up inner race for the inner pinion bearing. For the inner pinion bearing race: slightly grind down the outside of the race so it slips in and out of the housing pocket.
Click to expand...

No need to call outside sources when all the information can be answered here ~ and by professionals.
 
Jeff, thanks for the specs on the various shim packs. My job has kept me away from the Scout for a couple of weeks. Today I returned to the job of setting up the rear axle gears and I came up with a problem/question. When you say that .055" is a good place to start for the pinion shim pack, does that value include the large oil slinger that goes between the bearing and the pinion gear? That slinger is .030" thick. So, should I make the shim pack between the case and the bearing race be .025", or should I just ignore the thickness of the slinger and make the pack under the bearing race be .055"? Sorry to be a nit picker, but the I-h manual says that any slinger on a shimmed shaft should be counted as part of the shim pack. I am proceeding on the assumption that I should use a .055" starting shim pack under the bearing race, ignoring the thickness of the slinger. Please set me straight.

Second, in the rear-end rebuild kit I bought from you, there are two what appear to be oil slingers, I.e., metal discs with dished centers. I can't figure out where these go. Any light? Thanks for you patience and help.

Pineneedle
 
ihojeff said:
start with .055 worth of shim behind the inner pinion race. Start with about the same amount of shim on the outer bearing to build preload...
Click to expand...


Put about .055" of shims in the pocket between the case and the inner pinion race, and close to .055" of shims on the outer pinion bearing for the preload. Make a set-up inner race so you can easily change the shims if needed. Check the pre-load with a small in/lb beam or dial torque wrench.
 
pineneedle said:
Jeff, thanks for the specs on the various shim packs. My job has kept me away from the Scout for a couple of weeks. Today I returned to the job of setting up the rear axle gears and I came up with a problem/question. When you say that .055" is a good place to start for the pinion shim pack, does that value include the large oil slinger that goes between the bearing and the pinion gear? That slinger is .030" thick. So, should I make the shim pack between the case and the bearing race be .025", or should I just ignore the thickness of the slinger and make the pack under the bearing race be .055"? Sorry to be a nit picker, but the I-h manual says that any slinger on a shimmed shaft should be counted as part of the shim pack. I am proceeding on the assumption that I should use a .055" starting shim pack under the bearing race, ignoring the thickness of the slinger. Please set me straight.

Second, in the rear-end rebuild kit I bought from you, there are two what appear to be oil slingers, I.e., metal discs with dished centers. I can't figure out where these go. Any light? Thanks for you patience and help.

Pineneedle
Click to expand...

If using a slinger then deduct the .030 from the shim pack behind the inner pinion race. Keep in mind slingers are only used on front differentials so do not use one in the rear. As for the baffles you described the one that fits best will go on the outer pinion bearing just under the pinion seal.
 
erik vanrenselaar said:
put about .055" of shims in the pocket between the case and the inner pinion race, and close to .055" of shims on the outer pinion bearing for the preload. Make a set-up inner race so you can easily change the shims if needed. Check the pre-load with a small in/lb beam or dial torque wrench.
Click to expand...

Not sure why you are repeating me??? Although a set up race is helpful it is not needed.
 
Jeff, as usual, thanks for the prompt response. I guess that I have to leave the baffle out because the center hole is too small to allow the threaded sleeve of the yoke to pass through it.

Since I am not supposed to include the big slinger under the inner bearing in a rear axle rebuild, am I also not supposed to include the small slinger that goes between the outer bearing and the yoke sleeve? One is included in the kit, but perhaps it is also only to be used on a front axle rebuild. Thanks for your time.

Pineneedle
 
Not sure if I'm following you but as I wrote in post #6 a baffle will go on the outside of the outer pinion bearing between it and the pinion seal regardless if it is a rear or front application.
 
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