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  #31  
Old July 17th, 2018, 23:42
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Re: first time gear setup....need help

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  #32  
Old July 18th, 2018, 08:32
RCP Phx RCP Phx is offline
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Re: first time gear setup....need help

Your going to need to get a more substantial pattern, I would also tighten up the backlash.
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  #33  
Old July 18th, 2018, 08:33
RCP Phx RCP Phx is offline
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Re: first time gear setup....need help

BTW.... the pinion looks to deep!
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  #34  
Old July 18th, 2018, 09:04
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Re: first time gear setup....need help

hey outlander, I read through your thread. I set up gears for a living and I'm more then happy to help you with your endeavors. Used gear pattern is rather difficult to get a good pattern (sometimes) but it is definitely do-able. Case preload on HP Dana 30s you will want 9-12 inlbs of turning torque added on top of the pinion preload measurment. If you are looking for an exact shim to use to achieve proper case load it is a hit or miss. Their is a general rule of thumb to get you in the ball park but it's not exact. As for that general rule of thumb adding .003-.005' to both side of the carrier.

In regards to your picture. That pinion is way to deep. Post what your pinion depth shim is. I would remove .010" from that and pattern check.
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  #35  
Old July 18th, 2018, 17:10
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Re: first time gear setup....need help

i was thinking pinion looked a little deep...
also on used gears do they like to be ran with more or less backlash?
ill try to get a better pattern....
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  #36  
Old July 18th, 2018, 17:12
RCP Phx RCP Phx is offline
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Re: first time gear setup....need help

The most important thing with used gears are to get them back as close as possible to the original numbers!
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  #37  
Old July 18th, 2018, 17:44
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Re: first time gear setup....need help

i was thinking pinion looked a little deep...
also on used gears do they like to be ran with more or less backlash?
ill try to get a better pattern....
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  #38  
Old July 18th, 2018, 17:49
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Re: first time gear setup....need help

this is the pinion depth the guy who built it set it up at(this is a new carrier though)
the pattern you see above is me hoping i could use the original pinion depth the "pro" set it up at.

so i need to decide if my next step is gonna be a shallower pinion adjustment or tighten the BL and see where the pattern is....ill have to stare at it and ponder....hmmm
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  #39  
Old July 18th, 2018, 19:40
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Re: first time gear setup....need help

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  #40  
Old July 18th, 2018, 19:40
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Re: first time gear setup....need help

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  #41  
Old July 18th, 2018, 19:42
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Re: first time gear setup....need help

i went ahead and took the carrier out to give you guys a look at the pattern square to the tooth.
whats my next step?
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  #42  
Old July 19th, 2018, 22:38
md21722 md21722 is offline
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Re: first time gear setup....need help

The pinion is too deep. Remove pinion shims.
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  #43  
Old July 19th, 2018, 22:44
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Re: first time gear setup....need help

As long as the backlash is fairly close to spec, don't focus on getting the backlash zeroed in at the same time as you're adjusting the pinion depth. Just keep the backlash within a reasonable range of spec. What I'm saying is there is no way backlash out of spec will cause that pattern, pinion is too deep....
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  #44  
Old July 22nd, 2018, 18:16
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Re: first time gear setup....need help

got the pinion out today there was .010 shim behind the race along with the baffle so .030 because the baffle is .020.
preload shims totaled .084
I guess ill leave the .010 depth shim out and try the baffle only for a total of .020 depth shim and run a pattern on that.
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  #45  
Old July 23rd, 2018, 19:23
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Re: first time gear setup....need help



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