Re: can someone school me on setting pinion angle??
[Re: moparniac]
#446842
08/23/09 11:08 AM
08/23/09 11:08 AM
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Joined: Feb 2005
Posts: 5,207 Menomonee Falls
DemonDust
master
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master
Joined: Feb 2005
Posts: 5,207
Menomonee Falls
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Quote:
Just PM Quktree or sixpackgut
Yeah there is tech video on the here somewhere, very informative
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Re: can someone school me on setting pinion angle??
[Re: DemonDust]
#446843
08/23/09 12:48 PM
08/23/09 12:48 PM
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Joined: Dec 2007
Posts: 10,542 BROOK PARK, OH
WILD BILL
Senior Member of the Junior Dragster Club
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Senior Member of the Junior Dragster Club
Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
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Re: can someone school me on setting pinion angle??
[Re: DoctorDiff]
#446846
08/23/09 01:53 PM
08/23/09 01:53 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
You are correct. Pinion angle is the relationship between the pinion centerline and the crank/transmission centerline.
Make the pinion parallel to the transmission as a base-line, then pivot the pinion downward 2-3 degrees. In other words, the resulting pinion angle will be 2-3 degrees under parallel (nose down) to the transmission centerline when the car is at rest.
BTW, there are some jokers around here who say I'm telling you to index the transmission angle relative to the pinion instead of the other way around.
I see a movie being made now of drdiff by the haters
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Re: can someone school me on setting pinion angle??
[Re: Cab_Burge]
#446849
08/23/09 05:25 PM
08/23/09 05:25 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
No DR Diff hater here. I just wish he lived closer than BuzzardBreath Wyoming. I'd have a dana in my minivan !!
Bad excuse, UPS, Fed Ex abd others deliver get one now before Quicktree breaks all of them even Quicktree can't break a Dana 60
I am going to try like hell
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Re: can someone school me on setting pinion angle??
[Re: Quicktree]
#446850
08/23/09 05:28 PM
08/23/09 05:28 PM
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Joined: Apr 2004
Posts: 1,981 SE Michigan
TS3303
top fuel
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top fuel
Joined: Apr 2004
Posts: 1,981
SE Michigan
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Quote:
I am going to try like hell
just wait for Ray to get back from his boon doggle with you know who and have him set it up.
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Re: can someone school me on setting pinion angle??
[Re: TS3303]
#446851
08/23/09 06:05 PM
08/23/09 06:05 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
I am going to try like hell
just wait for Ray to get back from his boon doggle with you know who and have him set it up.
yea but no thanks
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Re: can someone school me on setting pinion angle??
[Re: DoctorDiff]
#446852
08/23/09 09:28 PM
08/23/09 09:28 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
You are correct. Pinion angle is the relationship between the pinion centerline and the crank/transmission centerline.
Make the pinion parallel to the transmission as a base-line, then pivot the pinion downward 2-3 degrees. In other words, the resulting pinion angle will be 2-3 degrees under parallel (nose down) to the transmission centerline when the car is at rest.............
I gotta say that I respectfully disagree with doing it that way........at least with a leaf spring car anyway.........
On my cars, and anything with decent power, especially with a stick, I'd always set the pinion down 7* with relationship to the driveshaft and it's ALWAYS worked great.......but, after reading here on Moparts how I need to set it to the crank centerline by Tony (Quicktree) so many times, I decided to do it that way on my just finished 68 GTS...........but first I've got to warn you that I did put 1" spacers between the K-frame and the body to lower the engine in the car which points the tail housing up a few degrees............
I set the pinion angle 7* down from the crankshaft center line and the car was fine until I let off the gas and it howled SO BAD I thought the rearend was was going to come apart.......... so, thanks to all the pinion angle threads on Moparts, I had to pull the rearend back out, cut the perches off, and reweld them back on.........this time with the angle 7* down from the driveshaft and it works GREAT now.........
So, I will NEVER set pinion angle that way again.........that's my on this.........
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Re: can someone school me on setting pinion angle??
#446853
08/23/09 09:38 PM
08/23/09 09:38 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
You are correct. Pinion angle is the relationship between the pinion centerline and the crank/transmission centerline.
Make the pinion parallel to the transmission as a base-line, then pivot the pinion downward 2-3 degrees. In other words, the resulting pinion angle will be 2-3 degrees under parallel (nose down) to the transmission centerline when the car is at rest.............
I gotta say that I respectfully disagree with doing it that way........at least with a leaf spring car anyway.........
On my cars, and anything with decent power, especially with a stick, I'd always set the pinion down 7* with relationship to the driveshaft and it's ALWAYS worked great.......but, after reading here on Moparts how I need to set it to the crank centerline by Tony (Quicktree) so many times, I decided to do it that way on my just finished 68 GTS...........but first I've got to warn you that I did put 1" spacers between the K-frame and the body to lower the engine in the car which points the tail housing up a few degrees............
I set the pinion angle 7* down from the crankshaft center line and the car was fine until I let off the gas and it howled SO BAD I thought the rearend was was going to come apart.......... so, thanks to all the pinion angle threads on Moparts, I had to pull the rearend back out, cut the perches off, and reweld them back on.........this time with the angle 7* down from the driveshaft and it works GREAT now.........
So, I will NEVER set pinion angle that way again.........that's my on this.........
ever think 7 maybe to much and I didn't invent the method. it is taught by people who run a lot faster than you or I will ever run. think about the purpose of setting pinion angle. setting it off of the drive shaft ignores the front ujoint totally. ever think the springs maybe wearing out letting the pinon go more than the desired amount? remember the guess of 7* down or what ever is just a guess. no way to figure out the perfect amount except trail and error or maybe some kind of video.
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Re: can someone school me on setting pinion angle??
[Re: Quicktree]
#446854
08/23/09 09:43 PM
08/23/09 09:43 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
ever think 7 maybe to much and I didn't invent the method. it is taught by people who run a lot faster than you or I will ever run. think about the purpose of setting pinion angle. setting it off of the drive shaft ignores the front ujoint totally. ever think the springs maybe wearing out letting the pinon go more than the desired amount? remember the guess of 7* down or what ever is just a guess. no way to figure out the perfect amount except trail and error or maybe some kind of video.
Like I'd mentioned.......that was with a leaf spring car, and it does have slicks, and it does make close to 600HP, and I does launch like I stole it......and I doesn't want the driveshaft to smack the floor pan when I do........been there, done that.....
The thing you're forgetting is that a LOT of places recommend 6 to 7* pinion angle with a leaf spring car that's making some poop, and my car would not work doing it that way.............that's all I'm saying........
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Re: can someone school me on setting pinion angle??
#446856
08/23/09 09:50 PM
08/23/09 09:50 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
ever think 7 maybe to much and I didn't invent the method. it is taught by people who run a lot faster than you or I will ever run. think about the purpose of setting pinion angle. setting it off of the drive shaft ignores the front ujoint totally. ever think the springs maybe wearing out letting the pinon go more than the desired amount? remember the guess of 7* down or what ever is just a guess. no way to figure out the perfect amount except trail and error or maybe some kind of video.
Like I'd mentioned.......that was with a leaf spring car, and it does have slicks, and it does make close to 600HP, and I does launch like I stole it......and I doesn't want the driveshaft to smack the floor pan when I do........been there, done that.....
The thing you're forgetting is that a LOT of places recommend 6 to 7* pinion angle with a leaf spring car that's making some poop, and my car would not work doing it that way.............that's all I'm saying........
another thing, not many if any leaf cars have a motor/tranny centerline angle going up.. just something to think about before you condem the method.
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