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Comments on gear pattern please...

yeah... now i see it on my desktop and not on phone, -.005 on the pinion and same b/l would be better
 
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The contact pattern illustrations and explanations on THIS page are pretty good, though the nomenclature is a little different
 
The last set of pics looks good to me, but I'm curious. What diff is this? d30? 8.25? 44? low or high pinion?
 
well, that said.. It'll run 90% of it's life with the ring gear pushing the pinion, which is the coast side of the tooth. That side of the pattern is picture perfect.
 
whitexj98 said:
HP 30, and there is no shims under the pinion, only the baffle. So I can't really reduce..
Click to expand...

Are you reusing the stock pinion baffle? Are there shims under the race in the housing? The aftermarket baffles are much thinner than the OEM ones, allowing for shims under the race.

Backlash adjustments are not for adjusting pattern.
 
How thick is the baffle? You should have a slinger underneath the bearing at the pinion head, then baffle/shims under the race. Have you got the race seated all the way, are there any burrs?
 
I bet hes running the stock .057 ~ .063 slinger, and then some baffle under race. You should have replaced the stock slinger (how dana sets depth in OE app), with the one in the master kit, and when you do that, then you have to add shim under race.

There is NO Picture perfect there. Deep both sides. Close enough that you Might not have any issues ever, especially in a front D30, but not right.
 
RWKHausSupply said:
I bet hes running the stock .057 ~ .063 slinger, and then some baffle under race. You should have replaced the stock slinger (how dana sets depth in OE app), with the one in the master kit, and when you do that, then you have to add shim under race.

There is NO Picture perfect there. Deep both sides. Close enough that you Might not have any issues ever, especially in a front D30, but not right.
Click to expand...

I have never seen a slinger setting the depth, always shims under the inner race, and I've torn down every single factory axle I have ever scrapped. Also there is a pinion depth+preload shim package in the parts catalog (8350 0192) and a single slinger part number with no thickness listed.
 
kastein said:
I have never seen a slinger setting the depth, always shims under the inner race, and I've torn down every single factory axle I have ever scrapped. Also there is a pinion depth+preload shim package in the parts catalog (8350 0192) and a single slinger part number with no thickness listed.
Click to expand...

I have Never seen a Dana OE assembled D30, D30R, D44, D44JK, D44RS have any make up shim under the race or under the head. They assemble with the main pinion slinger as setting depth. On early D30R they also accounted for some of this with the baffle thickness. I assemble about 5 axles a week. Its poss if there was one or more that did have make up shims under the race that those customers only bought a mini kit, and I adjusted with under the head.

I Never remove the race unless needed. With the correct tools, removing the bearing is much better and easier. There are more damaged then not, D44R housings from the mix of removing the race and poor QC (early stuff so) that have the inner race fall out.
 
so sorry to hijack but I am into a similar issue with a hp44 and some 5.13s...





thoughts?

mine are pinion is a hair too deep and thats about it.

BL is around .003
 
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