Stock Jimmy
1/2 ton status
Hey all and ty for any help. I was wondering if its ok to drive in 4 wheel drive like this?
CK5
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3.071 rear / 3.076 front
- Thread starter Stock Jimmy
- Start date
Stock Jimmy
1/2 ton status
ty sooo much.
Stock Jimmy
1/2 ton status
And too be really clear its a 12 bolt rear. 10 bolt front ty again.
No, it is much more fun with lower gears.
So you have 40/13 teeth in one diff and the other 43/14 teeth? I guess the front being Dana and the rear a GM would explain why they wouldn't be the same diff.
chopperfreak2k1
Registered Member
It has two rears?
How does it steer?I see that he posted the answer while I was typing and I just wanted to pick on somebody else to make myself feel better about my dumb post
There is no problem with this tiny difference in gear ratio. 0.16% difference is like having 1.6/32 more wear on your front 31" tires than on the back.
Stomis
Professional Amateur
5.38s and 5.29s work no problem for toyota guys with a dana front axle and toy rear. There is a margin of difference taken up by the backlash in the gears in the rears, and transfer case.
I cant remember what the exact number is but I think up to a 5% difference is acceptable...
PS: You get the over thinking things award for April lol.
I cant remember what the exact number is but I think up to a 5% difference is acceptable...
PS: You get the over thinking things award for April lol.
The front axle ratios never "exactly" match up due to different diameter ring gears and tooth counts--the 4.10 ratio rear axles are teamed up with 4.09 ratio front axles factory,as an example...
I once bought a '71 CST K-5 that had a SM465,and someone put a 3.08 rear axle in it,when the front was still the original 3.73 rear end--needless to say the first time I tried using 4WD,the truck bound up and twisted ,felt like one axle was seized--then the front hubs would unlock with a "BANG"...
--I bought a 3.73 rear axle for it,but never got around to putting it in--the new owner never did either,I gave him the axle when he bought it--he found it easier to just put larger tires up front only,to "match" the gears..he moved to Texas with it,where 4ws isn't needed much,so he gave the axle back to me before he moved..I have seen more than one truck here running different sized tires on one end VS the other,I guess they couldn't find the exact ratio axles they needed when one failed!..
I once bought a '71 CST K-5 that had a SM465,and someone put a 3.08 rear axle in it,when the front was still the original 3.73 rear end--needless to say the first time I tried using 4WD,the truck bound up and twisted ,felt like one axle was seized--then the front hubs would unlock with a "BANG"...
--I bought a 3.73 rear axle for it,but never got around to putting it in--the new owner never did either,I gave him the axle when he bought it--he found it easier to just put larger tires up front only,to "match" the gears..he moved to Texas with it,where 4ws isn't needed much,so he gave the axle back to me before he moved..I have seen more than one truck here running different sized tires on one end VS the other,I guess they couldn't find the exact ratio axles they needed when one failed!..
No, sometimes they do match exactly because you have the same tooth counts. This is possible even with different diameters, but the obvious case is 10b front and 10b rear.
