Gear Install

eeh1025 · 05-08-2003, 06:04 AM

Hi there i have an 86 gt and im putting in 4:10 gears, i was wondering What i have to do, do i have to just take out the other and put the new ones in or do i need other parts where i put new ones in, like can i use my old shims and sleeves stuff like that, thanks alot guys.
Ernie

drtbiker · 05-08-2003, 09:05 AM

Here we go i think Jeff Chambers site can help ya, http://www.kellnet.com/chambers/ I think i am going to give it a shot as well with installing. Everyone says if u dont know what ur doing dont install them. But my question is when will you ever learn how to do it if u dont try it.

later

b055 · 05-10-2003, 03:05 AM

install them, check backlash, check wear pattern.. have fun!

Bobasaurus · 05-10-2003, 09:08 AM

Gears have to be installed absolutely correct or they will whine. It is a fun adventure if you have the time. Wear pattern and backlash must be perfect. You will more than likely need shims to get quiet gears. The RATECH kit from Summit has tons of shim for both the pinion and the differential.

There are good articles all over the net. Some things to remember.

1. You need a dial micrometer for the backlash adjustment
2. You need a 1 1/16" socket for the pinion nut
3. You need gear marking compound.
4. You need a way to turn the 1 1/16" socket with tremendous force. I had a 2 ft. breaker bar with 2 ft of water pipe extension.

Read up and jump on it if you want the experience.

And lastly there is no worse smell than 170,000 mile gear oil

LX5liter · 05-10-2003, 09:53 AM

If you use Ford ( Racing Products or Motorsport) gears, chances are you won't need different shims, but you still have to check everything to make sure. I know when I did my 3.73's (Ford gears) the old shims were perfect.

05-08-2003, 06:04 AM	#1
eeh1025 Registered Member Join Date: Feb 2003 Location: NJ Posts: 81	Gear Install Hi there i have an 86 gt and im putting in 4:10 gears, i was wondering What i have to do, do i have to just take out the other and put the new ones in or do i need other parts where i put new ones in, like can i use my old shims and sleeves stuff like that, thanks alot guys. Ernie __________________ 93 GT 351 to 393 stroker, GT40 upper and lower intake, GT40X Turbo Swirl heads, holley 80mm throttle body, 255 fuel pump, 42 lb injector, JE pistons, Comp cam, comp lifters, comp pushrods, comp springs, crane Roller rockers. Trick flow Crank Shaft, comp Timing chain. MSD 7 series ignition, msd hvc2 coil, MSD timing adjust, MSD Pro billet Dis, Hooker long tube, Off road H pipe 1 chanber race flows, 4.10 gears, Vortech cooler and T-Trim with a 25lb boost AND LOTS MORE.

05-08-2003, 09:05 AM	#2
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	Here we go i think Jeff Chambers site can help ya, http://www.kellnet.com/chambers/ I think i am going to give it a shot as well with installing. Everyone says if u dont know what ur doing dont install them. But my question is when will you ever learn how to do it if u dont try it. later __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

05-10-2003, 03:05 AM	#3
b055 Registered Member Join Date: Mar 2003 Location: philadelphia ms Posts: 180	install them, check backlash, check wear pattern.. have fun! __________________ i got mustangs. do u?

05-10-2003, 09:08 AM	#4
Bobasaurus Registered Member Join Date: May 2002 Location: South Carolina Posts: 58	Gears are unforgiving, but .. Gears have to be installed absolutely correct or they will whine. It is a fun adventure if you have the time. Wear pattern and backlash must be perfect. You will more than likely need shims to get quiet gears. The RATECH kit from Summit has tons of shim for both the pinion and the differential. There are good articles all over the net. Some things to remember. 1. You need a dial micrometer for the backlash adjustment 2. You need a 1 1/16" socket for the pinion nut 3. You need gear marking compound. 4. You need a way to turn the 1 1/16" socket with tremendous force. I had a 2 ft. breaker bar with 2 ft of water pipe extension. Read up and jump on it if you want the experience. And lastly there is no worse smell than 170,000 mile gear oil __________________ Bobasaurus 1987 LX 5.0 - Engine Rebuild now installed - 26290 Wonderful Miles so far Items now installed from the garage : GT-40p heads, Explorer Intake, FMS "P" headers, Crower 15511, SFI Balancer, 24#, SPEC Stage 1, T5z, 65MM TB, 77MM Pro-M, 255lph Pump

05-10-2003, 09:53 AM	#5
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	If you use Ford ( Racing Products or Motorsport) gears, chances are you won't need different shims, but you still have to check everything to make sure. I know when I did my 3.73's (Ford gears) the old shims were perfect. __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

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