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Dumb Question! Help with axles!!

k5'er

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OK. what does 14b ff mean?? whats the ff?? and whats the diff between d60-70 and so on??? i have a set of 3/4 tons which have 14 bolts on the pumpkin, so i get that much. sorry about the dumb question!!

Mud! Its cool!
 
The FF means Full Floater which means it has no C-clips. Instead the axle bolts on at the end of the housing. The lack of C-clips is where the strength of the axle is.

There is also a 14sf which is a semi floating axle. This one has the c-clips like the 10 bolt axles do.

<a target="_blank" href=http://www.geocities.com/outlaw613/K5.html>http://www.geocities.com/outlaw613/K5.html</a>
 
14b FF = 14 bolt " full floater " there are also 14b SF which is a "semi-floater". i have not really looked into them as yet,,but i believe the difference is that a FF is completely supported by bearing's in the rear end houseing,unlike a SF which is is supported by the center section.

<font color=purple>ANYBODY LOSE THEIR JEEP????????
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I JUST FOUND ONE UNDER MY BLAZER!!!!
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14b-is the GM 14 bolts on the cover rear end. ff- full floating, the axles do not have the weight of the vehicle on them just like a front axle, spindles and hubs. Dana 60 9.75" ring gear and the Dana 70 is 10.5" like a 14bff. The dana 70 and 14bff have 1.5" diameter axles the dana 60 has 1.31" axles. Talking all rear axles.


<a target="_blank" href=http://community.webshots.com/user/70gmc>My 70 GMC</a>
 
good that explains it all! thanks guys! was kinda lost there for awhile!

Mud! Its cool!
 
Go on the main page and it has an axle identificationizer thing. Very informative.

That jeep thing? Yah I understand it....... Like my Blazer? <a target="_blank" href=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</a>
Jim
 
One smarta$$ taught me the difference between the 14SF and the 14FF, is that if you're axle breaks and the wheel falls OFF.....that's a SF axle. If the wheel stays connected.....that's 14FF!!!
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The reason is linked to what people have already said....SF axles only have a single bearing and the axle not only has to deal with the stresses of twisting the tire, but also needs to carry the weight of the truck. On a 14FF, the weight of the truck is supported on 2 bearings per side, so the only job the axleshaft has to do is turn the tires....

Hope that paints a somewhat clearer picture.....and YES there is an axle identification "thingie" on this site, to help you.

FWIW -&gt; Most people here would agree that a 14BFF is the way to go. It's CHEAP &amp; STRONG. The downside is that all the 14BFFs are 8-Lug wheel patterns.....the 14SF were only available in 6-Lug (as far as I know)



-Greg72

'72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
<font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
 
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