Rear End Gear Swap Help

streetstang06 · March 29th, 2006, 12:37 PM

I have a 1998 GT with stock 2.73 gears. I am getting ready to install 3.55 gears but would like to do it myself. Can someone put a step by step map for me to follow? Thanks

Bossman351 · March 29th, 2006, 02:59 PM

Rear gears is a very scientific process. I wouldnt recomend trying them on your own for the first time. Just my 2 cents.

AtlanticBlue99 · March 29th, 2006, 04:16 PM

here is a detailed article

xx9gt6xx · March 29th, 2006, 08:07 PM

You'll not be satisfied w/ 3:55's...

Go 4:10's, hand down for the win... And take it somewhere, 9 times out of 10 somthing will go wrong if you haven't done it before..

WAR-PARTY · August 21st, 2006, 12:33 AM

Bossman351 has a real good point I been building cars for 30 years and still take my car to a rear end guy, it is well worth the money // usualy 300 to 500 dollars depending on just what you are having done and the amount of parts you supply. We are all good at at least one thing, if age has taught me anything it's know your limits and go with what your good at. W.P.

Milner62 · August 22nd, 2006, 02:37 PM

yep basicly same thing i did, all i did was disassymble the axles from the center and sand blasted the rearend primered it and took it to a rearend shop to get the center rebuilt then after that i painted it before final assymbly of the axles.

Easy04_jm · November 9th, 2006, 09:35 PM

Just my opinion go with 3.73 gears cause my boys have gts as well and they have all the same shit exept for gears. I mean same year, engine work. The one with the 3.73 gears puts it on the one with 4.10 gears plus it get lttle better gase milage. also they are both 99 gt's.

82GT · November 21st, 2006, 01:14 AM

Once I bought my 4:10's and trac-loc rebuild kit, I had a shop install them both for $256....well worth it!

stang fanatic · November 21st, 2006, 09:44 PM

well, my 2 cents agrees that you should go with the 4.10's at least, and depending on your mechanical abilities and skill level determine whether you do it or not

itschristorres8 · November 21st, 2006, 10:24 PM

3.90s

but have a shop do it as they say...ive seen ppl get it in for $200

CyberPrey · November 27th, 2006, 04:46 PM

I am going to echo the thoughts of everyone else and say "SHOP!!!"

But, if you DO want to do it yourself, there is nothign wrong with it. I've done it a couple times myself.. you MUST, repeat MUST understand the procedure before you take things apart... and you will have to be a patient guy because it will take a bit to get it done right the first time. I had an experianced rear end guy with me when I did mine, and I was still able to screw stuff up..

*side note* chris, do you take the middle ground just to argue or be different, LOL

some say 3.73, some say 4.10... and you go 3.90

LOL LOL

March 29th, 2006, 12:37 PM	#1
streetstang06 Newbie Join Date: Jan 2006 Posts: 17	Rear End Gear Swap Help I have a 1998 GT with stock 2.73 gears. I am getting ready to install 3.55 gears but would like to do it myself. Can someone put a step by step map for me to follow? Thanks

March 29th, 2006, 02:59 PM	#2
Bossman351 Hardcore Enthusiast Join Date: Aug 2005 Location: On the trailer.......broke. Posts: 1,261	Rear gears is a very scientific process. I wouldnt recomend trying them on your own for the first time. Just my 2 cents. __________________ http://www.moddedmustangs.com/forums...ic137.html.jpg

March 29th, 2006, 04:16 PM	#3
AtlanticBlue99 The Nice Guy 1999 Ford Mustang V6 14.79 @ 92.15 Join Date: Aug 2005 Location: University of Georgia Posts: 8,310	here is a detailed article __________________ ModdedAutos 1999 Mustang V6 I used to list my mods here but stopped when I exceeded 255 characters.

March 29th, 2006, 08:07 PM	#4
xx9gt6xx Regular Join Date: Feb 2006 Location: Macomb Twp, Michigan Posts: 310	You'll not be satisfied w/ 3:55's... Go 4:10's, hand down for the win... And take it somewhere, 9 times out of 10 somthing will go wrong if you haven't done it before.. __________________ ...Modded 1996 Ford Mustang GT... SOLD!! ...Modded 2001 Ford Mustang SVT Cobra... SOLD!! Now... ...Modded 2003 Ford Mustang SVT Cobra, Anniversary Edition.. www.cardomain.com/id/po1snd_u

November 9th, 2006, 09:35 PM	#7
Easy04_jm Newbie Join Date: Apr 2006 Location: louisiana Posts: 26	Just my opinion go with 3.73 gears cause my boys have gts as well and they have all the same shit exept for gears. I mean same year, engine work. The one with the 3.73 gears puts it on the one with 4.10 gears plus it get lttle better gase milage. also they are both 99 gt's. __________________ !994 mustang with 96 3.8l engine. Ram air intake, Helix tower power throttle body space, dual exaust w/flowmaster's, 98 gt rearend 8.8 w/ 327 gears,SCT Xcalibrator 2 sf, and lots of audio and entertainment

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August 21st, 2006, 12:33 AM	#5
WAR-PARTY Hardcore Enthusiast 2001 YUGO GT Join Date: Aug 2006 Location: GOAT LOCKER PENSACOLA FL Posts: 1,079	Bossman351 has a real good point I been building cars for 30 years and still take my car to a rear end guy, it is well worth the money // usualy 300 to 500 dollars depending on just what you are having done and the amount of parts you supply. We are all good at at least one thing, if age has taught me anything it's know your limits and go with what your good at. W.P.

August 22nd, 2006, 02:37 PM	#6
Milner62 Regular Join Date: Aug 2006 Posts: 66	yep basicly same thing i did, all i did was disassymble the axles from the center and sand blasted the rearend primered it and took it to a rearend shop to get the center rebuilt then after that i painted it before final assymbly of the axles.

November 21st, 2006, 01:14 AM	#8
82GT Regular Join Date: Nov 2006 Location: Danville, Pa. Posts: 244	Once I bought my 4:10's and trac-loc rebuild kit, I had a shop install them both for $256....well worth it! __________________ 1982 GT (t-top) 351w(.060),10:3, ported & polished iron heads, 1.94/1.60 valves, BBK shorties & flowmasters, 274XE cam, stealth intake, mallory dizzy, stealth intake, 750dp, Edge 3700 stall converter, C-4, 4:10's Best E.T 12.85@102mph

November 21st, 2006, 09:44 PM	#9
stang fanatic Enthusiast Join Date: May 2006 Location: El Paso, Tx Posts: 855	well, my 2 cents agrees that you should go with the 4.10's at least, and depending on your mechanical abilities and skill level determine whether you do it or not __________________ "The gods too are fond of a joke." "If I had only known, I would have been a locksmith. "

November 21st, 2006, 10:24 PM	#10
itschristorres8 SP00LIN V6 2000 Mustang V6 437rwhp 402rwtq V6 Join Date: Aug 2006 Location: south florida Posts: 14,696	3.90s but have a shop do it as they say...ive seen ppl get it in for $200 __________________ The Sickest 6 The reason V8 owners on here hate me

November 27th, 2006, 04:46 PM	#11
CyberPrey Regular Join Date: Oct 2006 Posts: 333	I am going to echo the thoughts of everyone else and say "SHOP!!!" But, if you DO want to do it yourself, there is nothign wrong with it. I've done it a couple times myself.. you MUST, repeat MUST understand the procedure before you take things apart... and you will have to be a patient guy because it will take a bit to get it done right the first time. I had an experianced rear end guy with me when I did mine, and I was still able to screw stuff up.. side note chris, do you take the middle ground just to argue or be different, LOL some say 3.73, some say 4.10... and you go 3.90 LOL LOL

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