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» Northern California Ford Owners     » Automotive   » Tech Talk   » How can i find out if i have gears on rear end thats not installed on the car???

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Author Topic: How can i find out if i have gears on rear end thats not installed on the car???
ISP89LX
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Hey hows it going fellow members, i was wondering if any of you know how to figure out if i have gears on a rear end that's not installed on my car yet, this sn95 rear end came on a fox that i bought for parts a while back to do the 5lug swap on my notch, barely going to come around on installing it so i was just wondering whats the easiest way to figure this out.Also it was a pretty easy job when i dropped the rear end on the car, just wondering if maybe there's any tips you guys can give me when installing it on my car to make the job easier, or any parts that you guys recommend to swap on it rite now that the rear end is out other then axles? meaning aftermarket.Thanks fellas i appreciate any feedback or advice, thanks for looking... [patriot]

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89LX
Turbo50built!!!
Wait, he jacked my shit!!!
"Dan will make It rite" THIEF!

Posts: 2997 | From: Nowhere to be found. | Registered: Feb 2009  |  :
MUSTTANGUY
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real easy,
mark a spot on the pinion flange on front of rearend then mark a spot on the axle or rotor. rotate the axle/rotor one full rotation back to the same spot while counting the amount of times the pinion flange goes around.
2 3/4 would be a 2:73
3 times would be a 3:08
3 1/4 would be a 3:37
3 1/2 would be a 3:55
3 3/4 would be 3:73
4 times a 4:10
You get the idea

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Tim (Musttanguy)
97 5.0 coupe
82 GT 427/T56/9"

Posts: 1690 | From: Lodi | Registered: Dec 2002  |  :
ISP89LX
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quote:
Originally posted by Musttanguy:
real easy,
mark a spot on the pinion flange on front of rearend then mark a spot on the axle or rotor. rotate the axle/rotor one full rotation back to the same spot while counting the amount of times the pinion flange goes around.
2 3/4 would be a 2:73
3 times would be a 3:08
3 1/4 would be a 3:37
3 1/2 would be a 3:55
3 3/4 would be 3:73
4 times a 4:10
You get the idea

Thanks for all the great advice tim, I recommend him for anyone that has questions, shares a lot of great info and will walk you through it step by step. [patriot]

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89LX
Turbo50built!!!
Wait, he jacked my shit!!!
"Dan will make It rite" THIEF!

Posts: 2997 | From: Nowhere to be found. | Registered: Feb 2009  |  :
Camara90
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Member # 134

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Another easy meathod is to divide the pinion gear by the ring gear. 41/10. 4.10S

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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.

Posts: 2351 | From: 707 | Registered: Jan 2001  |  :
FivePTSlow
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Member # 7682

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Another way you could find out for sure is to open up your rear end and check. Lots of the time the gear ratio is put onto either the ring, or pinion. If you're in need of a rear axle fluid change anyway this would be a good way of tackling two needed tasks at one time.

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2011 GT/CS 5.0 + Boost(Procharger)
90 Bronco 5.8 Lifted
05 SRT-4 24PSI E-85 at least 50 million hp
07 Harley VROD NRS Stage 1

Posts: 1857 | From: Sacramento | Registered: May 2007  |  :
ISP89LX
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thanks to everyone that replied... [patriot]

--------------------
89LX
Turbo50built!!!
Wait, he jacked my shit!!!
"Dan will make It rite" THIEF!

Posts: 2997 | From: Nowhere to be found. | Registered: Feb 2009  |  :


 
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