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Old 04-09-2006, 09:07 PM   #1
rtsmith
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dana 60 gear ratio

I checked my ring gear today found these numbers 6.10 71dana 30316 A3D40X 41.9 just wondering if any one knows what ratio this might be as i have no clue what these numbers stand for. thanks in advance Randy
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Old 04-10-2006, 12:59 PM   #2
68Stepbed
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Re: dana 60 gear ratio

Assuming the 41.9 stands for the number of teeth, it would be a 4.56. Other than that, I wouldn't know.
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Old 04-13-2006, 09:58 PM   #3
chevy_fatman
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Re: dana 60 gear ratio

Randy I told you it'd be here
So that's a 4.56 then huh? anybody else?
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Old 04-14-2006, 12:04 PM   #4
70rs/ss
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Re: dana 60 gear ratio

Yep, you just devide the big one by the small one (numbers) and you get the ratio, I have seen some ratios stamped on the ring gear as well and they are in the 4.56:1 format.
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Old 04-14-2006, 08:35 PM   #5
Bill72BB
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Re: dana 60 gear ratio

rtsmith; What engine ,tranny ? The 72 restoration guide shows
C20 .Leaf springs
250cuIn all trannys ,4:56 ,4.10 Optional
292cuin 4:56,4:10 "
307cuin 4:10
350cuin 400 4:10.4:56 optional
402cuin all trannys 3:54, 4:10 optional
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72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts
tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion.


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