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pinion angle
#1
Give me opinions on a zero pinion angle with the car sitting on a drive on lift.
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#2
If you have measured accurately, I'd say you need to make some changes to keep your u joints intact. A spacer under the rear transmission mount and a couple 2 degree wedges under the leaf spring perches should get you there

[Image: 1_01_07_15_8_53_18.png]

"I love my Hookers!" and "Get some Strange" probably have a different connotation to non automotive enthusiasts!
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#3
your pinion angle is zero with the car just sitting?

depending on other variables, you should have typically have around 3 1/2 degrees of pinion angle with the car sitting. the more load that is applied to the pinion, the higher the nose of it will rise due to leaf spring flex etc. if the angle is 3 1/2 degrees with the car sitting, it will be less than that when driving with steady throttle at any speed.
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#4
Zero degrees in reference to what?

What two points are you measuring the angle between?
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#5
(05-15-2018, 09:54 AM)Bentworker Wrote: Zero degrees in reference to what?

What two points are you measuring the angle between?

Basically  I measured three points. Transmission, driveshaft, and rear housing. Using both a starrett angle meter and the app from tremec. Both showed the same. Neither positive or negative angle. Everything I have read is that you need, depending on the article, is 2-4 degrees with the car sitting. Just looking for opinions.
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#6
(05-15-2018, 10:44 AM)Tnfastbk Wrote:
(05-15-2018, 09:54 AM)Bentworker Wrote: Zero degrees in reference to what?

What two points are you measuring the angle between?

Basically  I measured three points. Transmission, driveshaft, and rear housing. Using both a starrett angle meter and the app from tremec. Both showed the same. Neither positive or negative angle. Everything I have read is that you need, depending on the article, is 2-4 degrees with the car sitting. Just looking for opinions.

Roy, I think you are having to much trouble with the car lately
You have had it for several years , had lots of fun, maybe it's time to get rid of the headaches.
You can send it down here to Ohio and I will " park " it in the shop for you
Then you can just enjoy riding around in Stacey's car ... in the passenger seat - no worries - no headaches whistling whistling whistling
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#7
and I have arranged with Don to buy you a bus ticket back home following delivery Wink

[Image: 1_01_07_15_8_53_18.png]

"I love my Hookers!" and "Get some Strange" probably have a different connotation to non automotive enthusiasts!
  Reply
#8
Seriously, throw a pair of 2 degree shims under the leaf spring mounts on the axle to point the snout downward and put a 1/8th inch spacer under the transmission mount (on top of the crossmember Big Grin ) and you'll be fine and you will even hook up a bit better in all likelihood.

[Image: 1_01_07_15_8_53_18.png]

"I love my Hookers!" and "Get some Strange" probably have a different connotation to non automotive enthusiasts!
  Reply
#9
If the driveshaft is just dead straight like you describe you shouldn't have any vibration issues. Only catch is that you will wear the joints themselves out earlier as the needles will wear in one spot. I'd just run it.
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#10
(05-15-2018, 11:18 AM)OMS Wrote: Roy, I think you are having to much trouble with the car lately
You have had it for several years , had lots of fun, maybe it's time to get rid of the headaches.
You can send it down here to Ohio and I will " park " it in the shop for you
Then you can just enjoy riding around in Stacey's car ... in the passenger seat - no worries - no headaches whistling whistling whistling

Obviously you have never rode with her. Promise I will break it before I will "park" it. But I appreciate the offer and the return trip offered by Jeff but for now I will pass.
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