Rear Differential

Missing that critical piece to your build or resto?

Rear Differential

Postby mickphatmac » Wed Sep 16, 2020 7:40 am

I’m looking to replace my stock rear diff.
4.11 gears
28 spline axles
Don’t really need to upgrade it just looking to replace it with something stock.
Mine has got a lot of slop in it and the vibration is becoming increasingly worse

I talked to a guy who could rebuild it for me and insisted on all new parts for $795 on Up!
Sooo Anyhooo...

I might also consider buying a whole axle if you have one handy and just wanted to get rid of that and not part one out!
Thank you all!
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1968 3.5" Lift on 31's Front serpentine belt ViperBuilt 4x4x2 PS C4 '66 Speedo '66 Horn Button- STROPPE goodies: Steering Wheel, Roll Bar, Cactus Smasher
SOLD :(1972 Explorer Sport - '66 Eyebrow Grill - '66 Speedometer - Stroppe Steering Wheel - Stroppe RollBar - ViperBuilt C4
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Re: Rear Differential

Postby Flatheadpopup » Wed Sep 16, 2020 7:56 pm

You can get a rebuilt one from Quick Performance delivered to you for $560 (open differential). They have all sorts of options as far as lockers and spline count. That is the least expensive place I have found with a good reputation. Good luck with whatever direction you decide to go.
67 Bronco in progress 2.5 lift, 351w, toploader, 4.11s and 33's
65 Mustang...also in progress.
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Re: Rear Differential

Postby phyler » Wed Sep 16, 2020 8:10 pm

There's a guy in Erie that rebuilds them. I think his name is Dan. He posts on Craigslist frequently. Not sure what he would charge to rebuild your center section but can't imagine it would be all that much.

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Re: Rear Differential

Postby mickphatmac » Wed Sep 16, 2020 10:34 pm

phyler wrote:There's a guy in Erie that rebuilds them. I think his name is Dan. He posts on Craigslist frequently. Not sure what he would charge to rebuild your center section but can't imagine it would be all that much.

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Uhhh yeah... Dan is the $795 ad up guy! :):):)
1968 3.5" Lift on 31's Front serpentine belt ViperBuilt 4x4x2 PS C4 '66 Speedo '66 Horn Button- STROPPE goodies: Steering Wheel, Roll Bar, Cactus Smasher
SOLD :(1972 Explorer Sport - '66 Eyebrow Grill - '66 Speedometer - Stroppe Steering Wheel - Stroppe RollBar - ViperBuilt C4
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Re: Rear Differential

Postby phyler » Thu Sep 17, 2020 6:16 am

mickphatmac wrote:
phyler wrote:There's a guy in Erie that rebuilds them. I think his name is Dan. He posts on Craigslist frequently. Not sure what he would charge to rebuild your center section but can't imagine it would be all that much.

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Uhhh yeah... Dan is the $795 ad up guy! :):):)
Dang. Sorry. That seems crazy for a rebuild of 9inch center section that's already out. <old man rant> I remember paying $125 to have mine rebuilt in the late 90's </old man rant>,



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Re: Rear Differential

Postby ZOSO » Fri Sep 18, 2020 5:24 am

buy the parts and do it yourself. The easiest to learn on is a 9in. I have done many of the now. No special tools required minus clamshell puller(only if putting new bearings on and old diff) And a press for the new bearings.
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Re: Rear Differential

Postby landshark » Fri Sep 18, 2020 12:04 pm

I have used dan 4 times including the center that is in the racer. He only uses great parts and components and his prices reflect that - most of the cost is in the parts if you have him build you a new center.

Quick Performance out of Iowa is surprisingly affordable. They built me a custom Heavy Duty trussed rear housing with billet ends for $765 shipped. I haven't priced out their centers but wouldn't hesitate to do so.

I echo Rob's suggestion of picking up a 9" rebuild kit and do it yourself. Very straight forward.

i would also look at the other components of the driveline if your having noise if you haven't been able to narrow it down - steering box bolts, rear leaf bushings, transmission mounts, engine mounts driveline. etc..
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Re: Rear Differential

Postby Kinder » Tue Sep 22, 2020 1:32 pm

If the diff is out you can bring it by my place with the new parts and we can rebuild it together.
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