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Old 04-08-2011, 09:41 PM   #1
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Busted Rear End

Well, I was minding my own business installing my rear Wilwood brake kit today and when it was time to slide the axels out I was greeted with an ugly sight.

When I removed the differential cover I noticed two of the four spider gears are pretty banged up! For some reason the gears on the left and right have mashed teeth. Only the ones on each side, the top and bottoms are fine. Any ideas as to what caused this?

My car has Eibach springs and Tokico D Speck Adjustable shocks as far as suspension and everything else is stock. Is it possible that being lowered without an adjustable Panhard bar or adjustable upper control arm that the angle of the driveshaft and rear end is off causing the gears to not mesh correctly. Or is it just a sign of abuse? The 3:55 gears look fine, it's just 2 of the 4 spider gears that are damaged.
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Old 04-08-2011, 09:56 PM   #2
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Re: Busted Rear End

seriously dought it's suspension related... are you one of those 5-7k rpm launch ppl? if so... that's most likley the cause.
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Old 04-08-2011, 10:17 PM   #3
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Quote:
Originally Posted by svtlx
seriously dought it's suspension related... are you one of those 5-7k rpm launch ppl? if so... that's most likley the cause.
No, I have been known to smoke em up but never have I hard launched. I am the second owner of the car and am starting to think the guy I bought it from wasn't driving Miss Daisy around. I just got it last May and have only put about 2000 miles on myself.
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Old 04-20-2011, 12:14 PM   #4
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Just finished installing

Steeda X5 ball joints
Steeda Heavy Duty Camber Plate
Steeda Bump Steer Kit
Steeda Comp/Street Adj UCA
Steeda Adj Panhard Bar
Steeda Panhard Brace
Steeda Non-Adj LCA

And just had 4 wheel alignment
Adjusted pinion angle to -1.5
Centered axle (was off by almost 1")

And all I can say is WOW. The car rides and handles better than ever with absolutely no increased NVH. I STRONGLY advise some if not all of these mods for anyone who has lowered their car. One or all of these things could have been the culprit for my differential gears getting fubared.
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Old 04-20-2011, 12:15 PM   #5
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Re: Busted Rear End

make sure you get all metal shavings out of the rear if you are not replacing the diff now
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Old 04-20-2011, 01:27 PM   #6
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make sure you get all metal shavings out of the rear if you are not replacing the diff now
Got out as much as I could find. Put it all together to get me to our local giant car show season opener tomorrow. Have an appointment for next Friday at my local speed shop to have the entire rear end rebuilt with new bearings & seals and a new hi performance gear driven differential.

Now I will be all set for my new 6 speed tranny, clutch and 1 piece aluminum driveshaft for next tax seasons mods
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Old 04-20-2011, 11:22 PM   #7
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Re: Busted Rear End

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Originally Posted by Jmeo View Post
Got out as much as I could find. Put it all together to get me to our local giant car show season opener tomorrow. Have an appointment for next Friday at my local speed shop to have the entire rear end rebuilt with new bearings & seals and a new hi performance gear driven differential.

Now I will be all set for my new 6 speed tranny, clutch and 1 piece aluminum driveshaft for next tax seasons mods
your going all out jmeo! when are you gonna get a new shortblock and crank up the boost? you just about got everything else done. thats gonna be a beast when you get it finished!
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Old 04-21-2011, 06:58 AM   #8
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Originally Posted by Blacks197

your going all out jmeo! when are you gonna get a new shortblock and crank up the boost? you just about got everything else done. thats gonna be a beast when you get it finished!
Well I hope to do the tranny, clutch and driveshaft next tax season and a forged block, FFRP heads and cams the year after that. That way when I crank up the boost my drivetrain will be ready. The next tax return after that I want to get the entire car re-painted and ghost stripes added.

As you know there is always something to do/get for these cars but after the next three years it will be the little things I hope to get her on the cover of Muscle Mustangs and Fast Fords.
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Old 04-21-2011, 07:34 AM   #9
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Re: Busted Rear End

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Originally Posted by Jmeo View Post
Well I hope to do the tranny, clutch and driveshaft next tax season and a forged block, FFRP heads and cams the year after that. That way when I crank up the boost my drivetrain will be ready. The next tax return after that I want to get the entire car re-painted and ghost stripes added.

As you know there is always something to do/get for these cars but after the next three years it will be the little things I hope to get her on the cover of Muscle Mustangs and Fast Fords.
well your definatley on your way. i'd say you'd be ready for 5.0 magazine by the end of next year. jmo.....
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Old 04-21-2011, 07:47 AM   #10
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Originally Posted by svtlx

well your definatley on your way. i'd say you'd be ready for 5.0 magazine by the end of next year. jmo.....
Thanks I hope so, for me it's personal. I lost my dad last year and he inspired me to fill my dream of a beautiful Mustang and go get on a cover so I can frame mine next to his 63 1/2 Galaxie he got on a cover.
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Old 04-21-2011, 08:06 AM   #11
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Re: Busted Rear End

awe man stop...im get'n misty eyed here. well i think it's definatley an obtainable dream at the speed your goin.
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racing aod, 2700 stall, 3.42 gears, ported e7, 308ci, 1.7rr, comp .560valve springs, gear drive, high dwell module, msd 6a & coil, bbk off road xpipe, mac cat back, 30lbs inj, pro-m 90mm, welded subframe connectors, boxed upper & lower trailing arms, spherical axle bushings, 255/50/16 tires, 255lph pump, 456hp
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Old 04-21-2011, 08:35 AM   #12
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awe man stop...im get'n misty eyed here. well i think it's definatley an obtainable dream at the speed your goin.
Lol thanks
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Old 04-21-2011, 08:52 AM   #13
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Quote:
Originally Posted by Jmeo

Thanks I hope so, for me it's personal. I lost my dad last year and he inspired me to fill my dream of a beautiful Mustang and go get on a cover so I can frame mine next to his 63 1/2 Galaxie he got on a cover.
That would be badass!
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Old 04-21-2011, 09:12 AM   #14
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That would be badass!
Agreed!
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