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Author
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Topic: stock gear upgrades?
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85CHP510
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Member # 9690
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posted
 
 
so i was thinking bout upgrading my gears to 3:73s: question. is there any other vehicles that i can get these gears from? any dofference from stock 3:73s that came in other fords compared to ford racing 3:73s? i work at pik n pu;; and if ican save me some money why not? but also i need an opinion and whats better
Posts: 311 | From: oakland | Registered: Dec 2009
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Big Dave
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Member # 13142
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Any 8.8 ring/gear set should work. Explorers, f150, even some jeeps have the 8.8.
If you take more than the ring/pinion then it gets complicated with 28 vs 31 spline.
Also make sure you take the shims, you may need them because the 3.73 is thicker.
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86 GT Vert with some mods. Yup
Posts: 165 | Registered: Aug 2013
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Tom Renzo
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Member # 13165
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posted
Never use used gears if possible. They are cheap enough to buy and set up properly they will live a long time.
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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85CHP510
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Member # 9690
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So ive looked and I was looking at sone of the explorer rears and im not sure what to get. Some tags say 3L73 8.8 and sum say 3.73 8.8 whats yhe differece?
Posts: 311 | From: oakland | Registered: Dec 2009
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CRS24WILSON
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Member # 9979
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posted
gears will be the same, it just the 3L73 is limited slip
Posts: 245 | From: SAN JOSE, CA | Registered: May 2010
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85CHP510
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Member # 9690
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posted
So just getvthe non "L" right? Theyre both possi no?
Posts: 311 | From: oakland | Registered: Dec 2009
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CRS24WILSON
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Member # 9979
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posted
no, only the L is. but either one of the gears will work
Posts: 245 | From: SAN JOSE, CA | Registered: May 2010
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sleeping stallion
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Member # 8162
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posted
He did say what vehicles have the gears he can use I seen plenty ppl run used gears including my self using same gear I ran in my 2002 since 05 no whine and I installed them myself
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1990 coupe HCI Boost
SEMPER FIDELIS
Posts: 1650 | From: Modesto ca | Registered: Jan 2008
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Wht86drop
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Member # 12104
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posted
Reason why he wants to take it out of a used car is because shimming it and all the crap you would go through to install brand new gears yourself is hard so getting a complete unit and straight installing it is easier
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Jalapeña Red 86 GT Vert
Yellow 72 Chevelle
Rio Red 97 Cobra
High-Output Generations CC
Posts: 1669 | From: East Palo Alto, Fiji Islands | Registered: Jun 2012
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Tom Renzo
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Member # 13165
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posted
Just for the record whenever you install any gears in a different housing they have to be EXACTLY set up as the doner housing . Another words used gears are much harder to set up. New gears are not run in yet. You just cant change them around with out setting them up. New or old the procedure is the same but old gears are run in and have to be set exactly as the old unit they came from. So you need the setting numbers from the old housing and use the exact setting in the new housing you are putting them in. This is why so many gear changes i do in my shop are messed up by other shops or individuals is so profitable to me.Most people do not know how to set up gears . Either way you need specialized tools and knowledge of how to set them up. Bottom line new gears are easier to set up. Most gears give you pinion depth numbers as ball park. Ford gears do not. Most aftermarket gears give you pinion depth. But the 8.8 does not. So pattern setting is critical and back lash still has to be dun either way. And he will still have to crush a new sleeve either way so he has to set the gears up either way.If it a is cost issue i can understand that. Thanks!!
[ 2013-12-08, 12:25 PM: Message edited by: Tom Renzo ]
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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jmcclesk
Moderator
Member # 1355
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posted
quote:
Originally posted by Tom Renzo:
Just for the record whenever you install any gears in a different housing they have to be EXACTLY set up as the doner housing . Another words used gears are much harder to set up. New gears are not run in yet. You just cant change them around with out setting them up. New or old the procedure is the same but old gears are run in and have to be set exactly as the old unit they came from. So you need the setting numbers from the old housing and use the exact setting in the new housing you are putting them in. This is why so many gear changes i do in my shop are messed up by other shops or individuals is so profitable to me.Most people do not know how to set up gears . Either way you need specialized tools and knowledge of how to set them up. Bottom line new gears are easier to set up. Most gears give you pinion depth numbers as ball park. Ford gears do not. Most aftermarket gears give you pinion depth. But the 8.8 does not. So pattern setting is critical and back lash still has to be dun either way. And he will still have to crush a new sleeve either way so he has to set the gears up either way.If it a is cost issue i can understand that. Thanks!!
I never use used gears!!!
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Ford trained ASE master tech.
Posts: 4024 | From: marrysville | Registered: May 2002
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Tom Renzo
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Member # 13165
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posted
It is never good to use used gears. Been doing final drives for a really ling time and i learned the hard way many years ago. New gears are a must. Thank you
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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redvenom
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Member # 12651
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posted
Well if you are on a buget by all means go for it.....but it would be wise to spend the few dollars and get new gears ![[patriot]](graemlins/patriot.gif)
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1990 Gt
Some what stock
1993 GT vert-(stolen)
Posts: 623 | From: cali | Registered: Dec 2012
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Tom Renzo
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Member # 13165
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I totally understand trying to save money. That is a given. Good luck Tom
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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Duncan Motors
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Member # 7045
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posted
alot of folks on here have run used gears with lil to no problems, used gears any dam gears all have to be shimmed or set up, no two houseing are the same. but as a shop its impossible to warranty some body's install with used stuff, so used gears go for 100 bucks, new is 70 bucks more, as a shop id almost pay the difference to 100 percent make sure the job goes with no hiccups long term. as a coustomer quit being cheap lol
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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