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Posi rear????
- Thread starter apbpetey
- Start date
RE: Posi rear????
If I have a open rear wouldn't only one tire spin? I tried both from a stand still and from power brake, each way both rear tires spin. I have also tried after running the run for awhile to heat up the car and again both rears leave tracks. I will check the RPMs tomorrow morning and let you know. Please let me know if I am wrong about the tires spining. My mom's old town car had a open and when power brake only the pass. rear spun not both, like mine is.
If I have a open rear wouldn't only one tire spin? I tried both from a stand still and from power brake, each way both rear tires spin. I have also tried after running the run for awhile to heat up the car and again both rears leave tracks. I will check the RPMs tomorrow morning and let you know. Please let me know if I am wrong about the tires spining. My mom's old town car had a open and when power brake only the pass. rear spun not both, like mine is.
MaddShadez
Registered
RE: Posi rear????
Did you turn off traction control? At a detroit meet we hada similar incident, and I think it ended up being cause he left the TC on.
Did you turn off traction control? At a detroit meet we hada similar incident, and I think it ended up being cause he left the TC on.
RE: Posi rear????
OKay my rpm at 75 is just over 2,000. I will try doing a long brake stand. I tried a brake stand a few times and each time i get both wheels spining. I haven't done it for a real long stand, but i would have thought that it doesn't matter only one rear should spin not both unless I am wrong about that. Will try it soon anyway.
OKay my rpm at 75 is just over 2,000. I will try doing a long brake stand. I tried a brake stand a few times and each time i get both wheels spining. I haven't done it for a real long stand, but i would have thought that it doesn't matter only one rear should spin not both unless I am wrong about that. Will try it soon anyway.
RE: Posi rear????
you have 3.07's and you still have an open diff. No mark VIII;s ever came with a trac-loc rear end. THe reason both your tires spin at the same time is due to the fact that the diff is seing exactly the same amount of torque on both tires. Therefor one does not give way to the other. THis is a good thing, consider yourself lucky that both tires hook up, but that still does not mean you do not have trac-loc rearend.
you have 3.07's and you still have an open diff. No mark VIII;s ever came with a trac-loc rear end. THe reason both your tires spin at the same time is due to the fact that the diff is seing exactly the same amount of torque on both tires. Therefor one does not give way to the other. THis is a good thing, consider yourself lucky that both tires hook up, but that still does not mean you do not have trac-loc rearend.
RE: Posi rear????
I wasn't saying I have a trac-loc rear and I understand that they only came with a open rear. I was just under the impression that a open rear end didn't act that this. Mainly because the few cars I have had with a non-posi rear always only spun one of the rears. I do consider it a nice thing that both my tires hook and prefer that they do.
I wasn't saying I have a trac-loc rear and I understand that they only came with a open rear. I was just under the impression that a open rear end didn't act that this. Mainly because the few cars I have had with a non-posi rear always only spun one of the rears. I do consider it a nice thing that both my tires hook and prefer that they do.
RE: Posi rear????
In a solid axle car the driveshaft tries to rotate the
axle, unloading one wheel and loading the other (torque
reaction). The IRS in the Mark prevents this and if you're
setting on level ground each wheel gets the same traction
(more or less).
Mel C.
93 garnet/grey
In a solid axle car the driveshaft tries to rotate the
axle, unloading one wheel and loading the other (torque
reaction). The IRS in the Mark prevents this and if you're
setting on level ground each wheel gets the same traction
(more or less).
Mel C.
93 garnet/grey
RE: Posi rear????
Before I changed to the 373 traction lok diff, I could/would get both tires to spin.
I thought it was strange as well... but after changing to a TRUE Traction Lok diff I immediately saw the difference.
with the open rear end, the tires would both spin.. but, not like with the "posi diff".
now.. POWER is evenly trasmitted equally to both tires.
before "the other tire" was just spinning along WITH the drive tire,
but it didn't have the same "power" as the drive tire.
Meaning "both would spin" but one would stop after a bit, and the drive tire would continue to spin.
Now... it hardly spins at all, no matter what I do.
Even, equal power delivery to BOTH WHEELS.
Before I changed to the 373 traction lok diff, I could/would get both tires to spin.
I thought it was strange as well... but after changing to a TRUE Traction Lok diff I immediately saw the difference.
with the open rear end, the tires would both spin.. but, not like with the "posi diff".
now.. POWER is evenly trasmitted equally to both tires.
before "the other tire" was just spinning along WITH the drive tire,
but it didn't have the same "power" as the drive tire.
Meaning "both would spin" but one would stop after a bit, and the drive tire would continue to spin.
Now... it hardly spins at all, no matter what I do.
Even, equal power delivery to BOTH WHEELS.