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  Pinion angle adjustment: how does one do it?

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Author Topic:   Pinion angle adjustment: how does one do it?
'69Stang
Gearhead

Posts: 205
From: Detroit, MI USA
Registered: Jan 2002

posted 05-02-2003 02:57 PM     Click Here to See the Profile for '69Stang   Click Here to Email '69Stang     Edit/Delete Message   Reply w/Quote
I have a stock 1969 9 rear axle and was wondering how (or if I should) give the rear pinion a negative 5-7 degree angle for better power transfer and traction. What type of mechanism or product can be adapted to the axle to lower the snout? What are some of you guys using? Thanks in advance.

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'69 Mustang Fastback, 351C, Holley 950 HP, New Parker Funnelweb intake, ported 4-v quench heads, 10.75:1, UD pulley, windage tray, Top Loader, 4.30 gears 9" rear
-------------------------

12.51 1/4 mile @ 115.89
60 foot time 2.008 (ouch)

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N266fords
Gearhead

Posts: 1404
From: Spokane ,WA USA
Registered: Apr 2003

posted 05-02-2003 02:59 PM     Click Here to See the Profile for N266fords   Click Here to Email N266fords     Edit/Delete Message   Reply w/Quote
go to lows ang grab an angle finder it looks like an l shape with a 45 on the outer edge and it had a dial in the middle to give you your angl.. Bruce

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N266fords
Gearhead

Posts: 1404
From: Spokane ,WA USA
Registered: Apr 2003

posted 05-02-2003 03:01 PM     Click Here to See the Profile for N266fords   Click Here to Email N266fords     Edit/Delete Message   Reply w/Quote
Gosh I am Sorry I meant Lowes lol and the last word was angle opps i am hunt and peck typist sorry again (dork i know) lol

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steve'66
Gearhead

Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000

posted 05-02-2003 03:23 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Read this,

http://www.moparts.com/ub/ubb/Forum20/HTML/000012.html

SteveW

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rockafellz
Gearhead

Posts: 1426
From: San Lorenzo, CA, USA
Registered: Aug 2001

posted 05-02-2003 04:40 PM     Click Here to See the Profile for rockafellz   Click Here to Email rockafellz     Edit/Delete Message   Reply w/Quote
Hey SteveW, the last paragraph in that article is exactly what my rear end sounds like from the inside!! I guess we overtightened!! Definitely going to swap springs tonight or tomorrow morning.

Erik

------------------
1966 Ford Mustang 2+2
Mine - Restomod in Progress

1966 Ford Mustang Coupe
Dad's - Original Unrestored

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'69Stang
Gearhead

Posts: 205
From: Detroit, MI USA
Registered: Jan 2002

posted 05-02-2003 04:42 PM     Click Here to See the Profile for '69Stang   Click Here to Email '69Stang     Edit/Delete Message   Reply w/Quote
O.K. so shim the rear axle. Does anyone sell iron shims for the Ford rear axle/leaf spring set-up?

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'69Stang
Gearhead

Posts: 205
From: Detroit, MI USA
Registered: Jan 2002

posted 05-02-2003 04:44 PM     Click Here to See the Profile for '69Stang   Click Here to Email '69Stang     Edit/Delete Message   Reply w/Quote
steve'66: BTW, thanks for the info, it was a good article.

------------------
'69 Mustang Fastback, 351C, Holley 950 HP, New Parker Funnelweb intake, ported 4-v quench heads, 10.75:1, UD pulley, windage tray, Top Loader, 4.30 gears 9" rear
-------------------------

12.51 1/4 mile @ 115.89
60 foot time 2.008 (ouch)

IP: Logged

steve'66
Gearhead

Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000

posted 05-02-2003 05:45 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Steel shims 2 1/2" wide are available a 4X4 off road shops. Papolla's off road in Santa Rosa, CA is where I get mine. 4x4's that are lifted need shims/wedges. You can use the aluminum ones, but I have had the break out on Jeeps.

SteveW

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