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Author
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Topic: Rear gears
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streetstang67
Gearhead Posts: 305
From: SC, USA
Registered: Nov 2002
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posted 02-26-2003 04:00 PM
   
Can I get rear ring and pinion gears from anybody besides summit or jegs, etc...? I mean, can I just get a ford replacement part for 8" rear end? Would napa or auto zone or the dealership have these? I dont have a 10 second car, and I want 3.40 gears; so I dont really need hardcore race gears, and they dont carry anything smaller than 3.55 anyway. THanks
How hard would it be to put these new gears in my current axle? If not, how much is installation usually? [This message has been edited by streetstang67 (edited 02-26-2003).]
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Mpcoluv
Gearhead Posts: 945
From: Charlotte NC usa
Registered: Apr 2001
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posted 02-26-2003 04:20 PM
quote:
Originally posted by streetstang67:
Can I get rear ring and pinion gears from anybody besides summit or jegs, etc...? I mean, can I just get a ford replacement part for 8" rear end? Would napa or auto zone or the dealership have these? I dont have a 10 second car, and I want 3.40 gears; so I dont really need hardcore race gears, and they dont carry anything smaller than 3.55 anyway. THanks
How hard would it be to put these new gears in my current axle? If not, how much is installation usually? [This message has been edited by streetstang67 (edited 02-26-2003).]
I don't know if you can still get 3.40 gears for an 8". 3.00 and 3.55 seems to be popular.
I have a 3.40 hogshead that I may sell later....
I'll trade for a 3.80 hogshead....
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johnmustang
Gearhead Posts: 4235
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001
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posted 02-26-2003 04:40 PM
Streetstang67, These may help you out: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2405068311&category=33731 http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2405020288&category=33731
I finally settled for a set of 3.25:1 posi set up, it took a long time to find and you seem to pay more for the 8 inch as compared to the 9 inch. Good luck
JOHN 
------------------
65 2+2 FASTBACK
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member:Vancouver Island Mustang Association
M&M #1710
MyPhotoPage
MY TRUCK
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streetstang67
Gearhead Posts: 305
From: SC, USA
Registered: Nov 2002
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posted 02-26-2003 04:47 PM
Anyone know of a "calculator" that will tell my the difference in quarter mile times with different gear ratios?
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steve'66
Gearhead Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 02-26-2003 05:03 PM
http://www.randysringandpinion.com/calculators.shtml
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streetstang67
Gearhead Posts: 305
From: SC, USA
Registered: Nov 2002
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posted 02-27-2003 03:39 PM
That calculator gives RPMs at a certain speed. I'm looking for one that will tell me differences in quarter mile times????
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steve'66
Gearhead Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 02-27-2003 06:48 PM
quote:
Originally posted by streetstang67:
That calculator gives RPMs at a certain speed. I'm looking for one that will tell me differences in quarter mile times????
That doesn't exist.
There are way too many variables to accurately predict e.t.'s.
You'll need the "black top dyno" for those calculations. SteveW
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Fastymz
Moderator Posts: 11429
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-27-2003 06:52 PM
quote:
Originally posted by steve'66:
That doesn't exist.
There are way too many variables to accurately predict e.t.'s.
You'll need the "black top dyno" for those calculations. SteveW
Black top dyno  Just tell us which different gears.I've read about Mustangs going from 2.79 to 3.25 gears and running .40 faster in the 1/4. ------------------
SCOOP
oddly obsessed with big scoops on little Mustangs 2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede. https://mustangsandmore.com/ubb/Fastymz.html
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streetstang67
Gearhead Posts: 305
From: SC, USA
Registered: Nov 2002
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posted 02-27-2003 07:54 PM
I was just wanting to know about the difference in change from 2.79 to 3.25, 3.40, or 3.55
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