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  Need the angle of the dangle for a 9"

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Author Topic:   Need the angle of the dangle for a 9"
Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 10-08-2002 12:20 PM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
Maybe that got your attention and here is my question.....

I am replacing the rear end in the 64 Fairlane and do not have another rear end handy. I need a measurement of the angle of the housing face where the 9" chunk bolts in relation to the spring perches. Anybody have an angle finder and a 9" housing handy or even an 8" housing from like a Fairlane or Mustang?

Alex, maybe you can answer this question....Is the housing face where the chunk bolts in at a right angle to the centerline of the pinion shaft?

Thanks
Larry

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Moneymaker
Administrator

Posts: 27499
From: Lyons, IL, USA
Registered: May 99

posted 10-08-2002 12:36 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Larry I am not sure of your question.
A good starting point for pinion angle with a leaf sprung drag car is 5-7 degrees downward.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
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Mike_R
Gearhead

Posts: 178
From: Indianapolis, IN 46237
Registered: Feb 2001

posted 10-08-2002 12:50 PM     Click Here to See the Profile for Mike_R   Click Here to Email Mike_R     Edit/Delete Message   Reply w/Quote
I think I know what you're asking because I just went through this on my new housing.

I think the only way to get a 100 accurate measurement (for the angle of the spring perches) is to measure the angle of the driveshaft vs the angle of the pinion vs the angle of the spring perches. Then you rotate the perches accordingly to get the pinion angle right.

Since you can't really do that at this point, a good starting point would be to place the perches at a 90 degree angle from the face of the housing where the third member bolts up. Once everything is bolted together it should point the rearend slightly down in relation to the driveshaft. Then you would make slight adjustments with wedges. My car for instance with the perches at 90 degrees from the housing face wound up making the pinion angle down 5 degrees from the driveshaft angle when everything was bolted together. That could vary from car to car though.

Or an even more accurate way would be to wait until the rearend is setting in the car and tack weld the perches in the correct position.

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Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 10-08-2002 01:36 PM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
Thanks for quick reply Alex.

I need to get a reference point at this time to initally tack the spring perch brackets to the housing. A little more on the reason.......

I have taken this 64 Fairlane completely appart to clean, repaint, etc. It is hanging on a rotisserie and I am just now putting the suspension parts back on the car. The original 8" was tossed out before I had a chance to measure the angles of the spring perches with relaction to the yoke angle. So, without any weight on the springs and no engine or transmission, to me the 5-6* down is more of a swag than using these two angles.

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Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 10-08-2002 01:38 PM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
Thanks MikeR. You are understanding what I am talking about. I will try that this weekend as a reference point till I get the engine and transmission in the car in a few months.

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Moneymaker
Administrator

Posts: 27499
From: Lyons, IL, USA
Registered: May 99

posted 10-08-2002 01:56 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
OK I see what you need now. Sorry, but I don;t have anything laying around that still has the perches in the stock location.

------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator

NHRA/IHRA/SRA/MCA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"

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Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 10-08-2002 02:28 PM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
As my Pappy use to tell me, "It doesn't cost anything to ask".

Thanks Alex. And Mike R.

Maybe some one else will have one just laying around.

[This message has been edited by Just Strokin (edited 10-08-2002).]

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TomP
Gearhead

Posts: 6120
From: Delta BC Canada
Registered: Dec 99

posted 10-08-2002 03:45 PM     Click Here to See the Profile for TomP   Click Here to Email TomP     Edit/Delete Message   Reply w/Quote
i don't have anything stock... but the one under my other Fairlane has the pinion angled downwards about 3-4 degrees if the springs are level with the ground.

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Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 10-08-2002 06:59 PM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
Thanks TomP.....

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steve'66
Gearhead

Posts: 9533
From: Sonoma,CA,USA
Registered: Mar 2000

posted 10-08-2002 08:28 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
I've got one in the garage, a bare nine inch housing from a '58 ford. It's completely stock and the center section is angled up 93 degrees from the spring perches. Yes UP 3 degrees from ninety.

SteveW

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Just Strokin
Gearhead

Posts: 754
From: Tuscaloosa, Alabama
Registered: Dec 2001

posted 10-08-2002 09:50 PM     Click Here to See the Profile for Just Strokin   Click Here to Email Just Strokin     Edit/Delete Message   Reply w/Quote
Thanks Steve....

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No fast Fords at this time but one fine cruising 96 F350 CC DRW Power Strokin diesel.
And one rusty 64 Fairlane nick-named the Rust Bucket....And sometimes called the Money Pit...

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