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Discussion Starter #1
hello group,
i found out that someone at some point replaced the rear end in my car, and i can thank them for that, cause it is trac-loc , leaves 2 nice black marks on dry pavement. my car is automatic trans. is there a way to tell if its a 3.08 ,3.27 gear etc. i have checked my rpm's at these speeds, this is what i get in overdrive....

55 mph= 1400 rpm's

65 mph= 1700 rpm's

thanks for any help

Frank
 

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Discussion Starter #4
Rodeo Joe said:
I haven't checked it at 65 but at 70 mph mine is at 2K RPM with a 3.27 rear gear.

Joe
i checked mine at 2000rpm's = 75mph
 

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9,165 Posts
Mine is at 2,000 at 70 MPH. but I may not have gotten the needle back on right when I put the gauge faces on. In that respect I'd like to know what a stone factory 97 3.8 turns at 70MPH. Did I get the needle on right?
 

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Formerly Fdawg97LX
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3,186 Posts
if you have a stock rear end in there you can also check your axle code on the sticker in your door jam. its the nmber/letter listed onder AX. once you get the code match it up here .

Frank
 
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