dont do front digs with 38's aired down on asphalt
#21
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A driveshaft disconnect, twin stick, or the marlin prototype doesn't cause anything, they ALLOW you to have front wheel drive only. Basically, he's turning using only the giant front tires on cement. You know what happens when you try to make a sharp turn on dry pavement in 4wd...lots of fun noises.
#22
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Originally Posted by marko3xl3
If anyone could elaborate for the noob...how come this is happening. As far as I understand, you are using FWD in low gear, so the shaft is spinning fast, but why would it break especially on a drive way?
Also, how does having a shaft disconnect cause this? And how does the prototype case help avoid that?
Also, how does having a shaft disconnect cause this? And how does the prototype case help avoid that?
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Originally Posted by superjoe83
not quite
You can see the case hardening of the pinion shaft at the failure surface. The outer 0.05" of the shaft is smooth indicating a brittle failure while the interior is more ductile.
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Thanks for some of the explanations, but I am still a lil confused. If you are front digging (with a twin stick - dual tcases) means 1st tcase is in 4low and second is in N, right? So why would there be any binding unless the front is locked?
I am very sorry for the Q's, I am just trying to get this straight in my head.
I am very sorry for the Q's, I am just trying to get this straight in my head.
#25
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Originally Posted by marko3xl3
Thanks for some of the explanations, but I am still a lil confused. If you are front digging (with a twin stick - dual tcases) means 1st tcase is in 4low and second is in N, right? So why would there be any binding unless the front is locked?
I am very sorry for the Q's, I am just trying to get this straight in my head.
I am very sorry for the Q's, I am just trying to get this straight in my head.
#26
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I get it all now, I was only confused because I didn't understand the two different typed of stress. In my setup, I cause binding because of not having a center differential, in your case, you just had too much traction and the gear couldn't handle it. I kept trying to apply "my" type of binding to your scenario which just doesn't apply.
Thanks for the explanations and patience!
Thanks for the explanations and patience!
#28
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Originally Posted by marko3xl3
Thanks for some of the explanations, but I am still a lil confused. If you are front digging (with a twin stick - dual tcases) means 1st tcase is in 4low and second is in N, right? So why would there be any binding unless the front is locked?
I am very sorry for the Q's, I am just trying to get this straight in my head.
I am very sorry for the Q's, I am just trying to get this straight in my head.
Marko - nothing was binding. Nothing was wrong really. It happened because with all the gear reduction available, plus not splitting the increased torque between the front and rear wheels like normal, plus the super traction available on pavement with aired down tires - he simply grossly applied much more torque than the axle could take. Pilot error.
If it hadn't broke there it surely would have broken something else - in fact it did damage the gear teeth - but it could have snapped an axle or snapped an outer joint or busted the hubs or twisted the driveshaft or something - something was gonna go bust.
Superjoe - 2 questions?
1 -is your torque arm still installed? I've seen this exact failure before on rigs without the front torque arm - high torque and axle wrap...
2- did you follow the time honored tradition before you perfromed this standard-mil-spec-clutch-drop test - and utter the invocation "Hold my beer and watch this." ?
Last edited by Flamedx4; 01-08-2006 at 11:23 AM.
#29
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Originally Posted by Flamedx4
Superjoe - 2 questions?
1 -is your torque arm still installed? I've seen this exact failure before on rigs without the front torque arm - high torque and axle wrap...
2- did you follow the time honored tradition before you perfromed this standard-mil-spec-clutch-drop test - and utter the invocation [color=yellow
Superjoe - 2 questions?
1 -is your torque arm still installed? I've seen this exact failure before on rigs without the front torque arm - high torque and axle wrap...
2- did you follow the time honored tradition before you perfromed this standard-mil-spec-clutch-drop test - and utter the invocation [color=yellow
"Hold my beer and watch this."[/color] ?
[Hijack Off]
#30
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Originally Posted by Flamedx4
Superjoe - 2 questions?
1 -is your torque arm still installed? I've seen this exact failure before on rigs without the front torque arm - high torque and axle wrap...
2- did you follow the time honored tradition before you perfromed this standard-mil-spec-clutch-drop test - and utter the invocation "Hold my beer and watch this." ?
1 -is your torque arm still installed? I've seen this exact failure before on rigs without the front torque arm - high torque and axle wrap...
2- did you follow the time honored tradition before you perfromed this standard-mil-spec-clutch-drop test - and utter the invocation "Hold my beer and watch this." ?
not really i was by myself being an idiot, costing myself money :pat:
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