Limited slip (good news)
Dec 19, 2012, 07:24 AM
#31
my thoughts continued:
as you can see, the "thin spots" that connect one side of the diff carrier to the other, or the "spider gear housing" (where the axles connect to the diff)...this would likely be a weak spot if any...
Also, as you see by the design of the transmission, it is unlikely that any large chunks of metal, even if it were to explode, would be unlikely to pass the differential drive gear...and enter the workings of the gear shafts. in my mind a blown diff would not cause the transmission to be completely destroyed...
Last edited by CrAnSwIcK; Dec 19, 2012 at 07:26 AM.
excited
Dec 27, 2012, 09:51 PM
#36
by Ziggy @ RTM Racing » Thu Dec 27, 2012 9:37 am
Well, I have some good news! The DSM LSD units will fit your diff. It seems they are SLIGHTLY snug on the width. I need to pull it back out, and determine whether there are tiny burrs on your gears that just need to be stoned off (that is my guess), or else I can just grind them about .001 - .002 narrower for your diffs....
Well, I have some good news! The DSM LSD units will fit your diff. It seems they are SLIGHTLY snug on the width. I need to pull it back out, and determine whether there are tiny burrs on your gears that just need to be stoned off (that is my guess), or else I can just grind them about .001 - .002 narrower for your diffs....
Dec 28, 2012, 07:37 AM
#37
by Ziggy @ RTM Racing » Thu Dec 27, 2012 9:37 am
Well, I have some good news! The DSM LSD units will fit your diff. It seems they are SLIGHTLY snug on the width. I need to pull it back out, and determine whether there are tiny burrs on your gears that just need to be stoned off (that is my guess), or else I can just grind them about .001 - .002 narrower for your diffs....
Well, I have some good news! The DSM LSD units will fit your diff. It seems they are SLIGHTLY snug on the width. I need to pull it back out, and determine whether there are tiny burrs on your gears that just need to be stoned off (that is my guess), or else I can just grind them about .001 - .002 narrower for your diffs....
Dec 29, 2012, 10:32 AM
#38
Awesome effort, Garrett. Ziggy rules!
With respect to longevity of the bearing surfaces (LSD plate-to-back-of-gear), I recall from my design days that hard material rubbing against hard material isn't good, it's better to have soft-on-hard which doesn't wear nearly as quickly. I assume the spider gears are case hardened. Therefore, given it is strong enough, is the mild steel LSD unit a better choice over tool steel?
And no, the parts I just got from RTM aren't for intravenous feeding - I have good whiskey for that, like you guys showed in the Merry Christmas thread.
With respect to longevity of the bearing surfaces (LSD plate-to-back-of-gear), I recall from my design days that hard material rubbing against hard material isn't good, it's better to have soft-on-hard which doesn't wear nearly as quickly. I assume the spider gears are case hardened. Therefore, given it is strong enough, is the mild steel LSD unit a better choice over tool steel?
And no, the parts I just got from RTM aren't for intravenous feeding - I have good whiskey for that, like you guys showed in the Merry Christmas thread.
Last edited by RalliartN; Dec 29, 2012 at 10:36 AM.
Dec 29, 2012, 05:58 PM
#40
yeah, just talking about the two material choices Ziggy offers.
p.s. I got some car stuff being shipped here, and when they arrive we'll start (if no one else has) a thread about parts we got for Christmas .
p.s. I got some car stuff being shipped here, and when they arrive we'll start (if no one else has) a thread about parts we got for Christmas .
Last edited by RalliartN; Dec 29, 2012 at 06:04 PM.
Dec 30, 2012, 04:28 PM
#42
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Awesome effort, Garrett. Ziggy rules!
With respect to longevity of the bearing surfaces (LSD plate-to-back-of-gear), I recall from my design days that hard material rubbing against hard material isn't good, it's better to have soft-on-hard which doesn't wear nearly as quickly. I assume the spider gears are case hardened. Therefore, given it is strong enough, is the mild steel LSD unit a better choice over tool steel?
And no, the parts I just got from RTM aren't for intravenous feeding - I have good whiskey for that, like you guys showed in the Merry Christmas thread.
With respect to longevity of the bearing surfaces (LSD plate-to-back-of-gear), I recall from my design days that hard material rubbing against hard material isn't good, it's better to have soft-on-hard which doesn't wear nearly as quickly. I assume the spider gears are case hardened. Therefore, given it is strong enough, is the mild steel LSD unit a better choice over tool steel?
And no, the parts I just got from RTM aren't for intravenous feeding - I have good whiskey for that, like you guys showed in the Merry Christmas thread.
Is tool steel softer then a case hardened steel? Also I think it's more brittle.
I bought myself a 12 year glenlevit for an iv fix
Jan 1, 2013, 09:57 AM
#43
These classes of steels are hardenable through a range of values, you specify to the shop what hardness level you want to achieve. Can't just say "yes or no this steel is harder than that steel". Have to ask Ziggy directly I'm sure he knows.
Enjoy the fine single malt
Enjoy the fine single malt
