REAR END ID
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Elder User
Joined: Apr 2011
Posts: 632
Likes: 1
From: Bremerton, Wa
REAR END ID
is there a way to tell what rear end option the truck has by the VIN?
I'm curious what gears I've got
I'm guessing 3.73's but not sure
I've got the 460 4bbl / c6 and the tires are 9.75x16.5
it seems that I'm about 2200-2300 rpm at about 60-65mph
I'm curious what gears I've got
I'm guessing 3.73's but not sure
I've got the 460 4bbl / c6 and the tires are 9.75x16.5
it seems that I'm about 2200-2300 rpm at about 60-65mph
Fleet Mechanic
Joined: Feb 2004
Posts: 1,511
Likes: 334
From: Arlington,Wa
IIRC.....on the far right side of the VIN plate.....should be a code for the axle. You might even be lucky enough to find an ID tag on the axle itself provided the P.O didnt remove it. 3:73's is a good guess.....dont be surprised if it has 4:10's
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
After nearly four decades the only certain way to know is to pull the cover and see for yourself, or you can get pretty close with the "turn tire once and count drive shaft revolutions" method.
Tuned
Joined: Dec 2009
Posts: 448
Likes: 31
From: Park City, Utah
I think montana_highboy is correct.
My understanding is the lowest ratio available in a Dana 60 is 3.55:1. Assuming a 31.5" tire diameter and 62 MPH, I believe that would yield 2,292 RPM.
I'm not knowledgeable about what ratios were available with different engine/transmission option combinations.
My understanding is the lowest ratio available in a Dana 60 is 3.55:1. Assuming a 31.5" tire diameter and 62 MPH, I believe that would yield 2,292 RPM.
I'm not knowledgeable about what ratios were available with different engine/transmission option combinations.
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