Gear Install Help Please????

90'5.0 Conv · 04-08-2002, 06:44 PM

I have a set of 4.10 gears and an install kit ready to go in the stang but I don't wannna screw it up. Heard too many horror stories!!I don't have the money to get someone to do it so what I need is some good instructions. Oh yeah, I am mechanically inclined, just haven't ever messed with the rearend. Appreciate any help.

Thanks James

stock89 · 04-08-2002, 09:27 PM

Gears are somewhat challenging. I replaced mine myself with a friends assistance. Somewhere on a previous post, someone had given a link to an EXCELLENT instruction website for gear install. Try a search for it. If you can't find it, PM me.

Good luck man,
Rob

srv1 · 04-08-2002, 10:08 PM

90. make sure you get a good dial indicator!!! make sure you have a good magnetic base for it too! TAKE YOUR TIME!! i cant emphasize this enough. make sure your gear pattern is correct, toe and heel! will you be using air tools? will it be on a lift? if no to these questions, make sure the azz end is up high in the air you you have a strong but not too long breaker bar or 1/2' ratchet! you are going to need to crush the crush sleeve pretty good doing it by hand. you are going to need access to a press so you can put your bearing(s) on. rule of thumb. if you are pressing the bearings on, make sure you put the RACE on the bearing so it gives equal pressure to the bearing when you are pressing it on the pinion or differential. if not, you can distort the bearing cage and ruin the bearing itself!!

here you go:

gear install

GOOD LUCK AND BE PATIENT!

Coupe5oh · 04-08-2002, 10:39 PM

Wow, looks fun....

Jeff Chambers · 04-09-2002, 06:56 AM

I've got a write-up on my site as well; its actually referenced in the Corral article. Getting the gears set up correctly takes practice and the right tools. At most shops, they're just going to pull the old ones out and slap the new ones in using the same pinion shim, so you might as well give it a go yourself. Just check backlash and the pattern when you're done to make sure that they're not too far out of wack.

90'5.0 Conv · 04-09-2002, 02:49 PM

Thanks alot guys, think I'll try it this weekend if I can set aside a good bit of time. A friend of mine has a dial indicator and air tools and he said he'd help me if I needed it so I guess here goes nothin.

Thanks James

04-08-2002, 06:44 PM	#1
90'5.0 Conv Long time member in and out Join Date: Jul 2001 Location: Albany, Ga Posts: 343	Gear Install Help Please???? I have a set of 4.10 gears and an install kit ready to go in the stang but I don't wannna screw it up. Heard too many horror stories!!I don't have the money to get someone to do it so what I need is some good instructions. Oh yeah, I am mechanically inclined, just haven't ever messed with the rearend. Appreciate any help. Thanks James __________________ 90' Mustang GT Convertible- C4 w/ manual body 4.10's soon to be 3.27's 2 Ch Flowmasters 1/8th ET 9.04

04-08-2002, 09:27 PM	#2
stock89 Registered Member Join Date: Oct 2001 Location: Mannheim, Germany Posts: 124	Gears are somewhat challenging. I replaced mine myself with a friends assistance. Somewhere on a previous post, someone had given a link to an EXCELLENT instruction website for gear install. Try a search for it. If you can't find it, PM me. Good luck man, Rob __________________ 89 LX 5.0 Notchback, FINALLY NO LONGER STOCK!

04-08-2002, 10:08 PM	#3
srv1 Get down..... Join Date: Apr 2001 Location: Room 103 Posts: 2,095	read please!! 90. make sure you get a good dial indicator!!! make sure you have a good magnetic base for it too! TAKE YOUR TIME!! i cant emphasize this enough. make sure your gear pattern is correct, toe and heel! will you be using air tools? will it be on a lift? if no to these questions, make sure the azz end is up high in the air you you have a strong but not too long breaker bar or 1/2' ratchet! you are going to need to crush the crush sleeve pretty good doing it by hand. you are going to need access to a press so you can put your bearing(s) on. rule of thumb. if you are pressing the bearings on, make sure you put the RACE on the bearing so it gives equal pressure to the bearing when you are pressing it on the pinion or differential. if not, you can distort the bearing cage and ruin the bearing itself!! here you go: gear install GOOD LUCK AND BE PATIENT! __________________ Cobra brakes are on! Finally..... ------------------------------------------------

04-08-2002, 10:39 PM	#4
Coupe5oh Registered Member Join Date: Nov 2001 Location: SanAntonio, Tx Posts: 734	Wow, looks fun.... __________________ Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer Race weight: 3,120 E.t-13.57 with 26x10.50's e.t. streets. 1.88 60' mph- 99.92 mph

04-09-2002, 06:56 AM	#5
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	I've got a write-up on my site as well; its actually referenced in the Corral article. Getting the gears set up correctly takes practice and the right tools. At most shops, they're just going to pull the old ones out and slap the new ones in using the same pinion shim, so you might as well give it a go yourself. Just check backlash and the pattern when you're done to make sure that they're not too far out of wack. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

04-09-2002, 02:49 PM	#6
90'5.0 Conv Long time member in and out Join Date: Jul 2001 Location: Albany, Ga Posts: 343	Thanks alot guys, think I'll try it this weekend if I can set aside a good bit of time. A friend of mine has a dial indicator and air tools and he said he'd help me if I needed it so I guess here goes nothin. Thanks James __________________ 90' Mustang GT Convertible- C4 w/ manual body 4.10's soon to be 3.27's 2 Ch Flowmasters 1/8th ET 9.04

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