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Just got my 3.73s in. WOW

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Old 01-27-2007, 11:55 PM
  #11  
nmerrill
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Default RE: Just got my 3.73s in. WOW


ORIGINAL: dillon1340

i've got my 3:73s sitting next to me in a box with all shims, bearings, seals, oil, friction modifier. but i don't have a press or a bearing splitter so i might pay to have it done.
I did mine without a press or bearing splitter. I used a dremel to get the bearings off so i could get to the shim.
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Old 01-28-2007, 01:07 AM
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83FoxBody
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Default RE: Just got my 3.73s in. WOW

How do youfix thespeedo problem? I have swapped my speedometer guage, but I am assuming you need to swap the speedo gear when you change your diff. gears too? Anyone got advice on that?
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Old 01-28-2007, 01:35 AM
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notch5oh
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Default RE: Just got my 3.73s in. WOW

seems really easy, but if your putting in 410's i think you have to do both of the gears to get it accurate

http://www.latemodelrestoration.com/.../LRS-17271.pdf
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Old 01-28-2007, 04:43 PM
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WhiteFoxGT
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Default RE: Just got my 3.73s in. WOW

ORIGINAL: nmerrill


ORIGINAL: dillon1340

i've got my 3:73s sitting next to me in a box with all shims, bearings, seals, oil, friction modifier. but i don't have a press or a bearing splitter so i might pay to have it done.
I did mine without a press or bearing splitter. I used a dremel to get the bearings off so i could get to the shim.
I only used the press to put the bearing on the pinion gear, and I used a set of tools that go on the end of a air hammer to put on the carrier bearings and the races in the housing. The hardest part of doing gears isgetting the old bearings off to re-use the shim.
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Old 01-28-2007, 04:47 PM
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turbosha
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Default RE: Just got my 3.73s in. WOW

i put my own 3.90's in and they whine alittle [:@]
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Old 01-28-2007, 05:12 PM
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WhiteFoxGT
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Default RE: Just got my 3.73s in. WOW

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i put my own 3.90's in and they whine alittle [:@]
What brand? I've heard that if you dont buy Ford gears they will whine.
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Old 01-28-2007, 05:17 PM
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turbosha
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Default RE: Just got my 3.73s in. WOW

motive gear, i got them new in the box atthe nmra world nationals in bolwing green
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Old 01-28-2007, 06:51 PM
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Default RE: Just got my 3.73s in. WOW

i have frpp 3.55's going in this coming weekend, where can i get the bearing kits in a hurry?
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Old 01-28-2007, 06:56 PM
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WhiteFoxGT
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Default RE: Just got my 3.73s in. WOW

I bought my stuff from Summit. Usually ships in 2-3 days, I bought the whole rebuild kit, but what you really need is just the bearings and seals. I re-used my stock shims..except for the one I broke [:@]I replaced it with one that was .001 thicker, no problems.
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Old 01-28-2007, 06:57 PM
  #20  
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Default RE: Just got my 3.73s in. WOW

awesome thanks, ill check it out. what will it be listed under? differential bearings?
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