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Discussion Starter #1
Sorry if I'm bugging you guys with this shit, but that search fawker times out on me every time .......

I've found and am considering a 14 bolt dually (62 wms) rear for my YJ.......

I noticed that the pinion on the 14 bolt is relatively high compared to a normal dana axle. High5 confirmed this for me, but I was wondering if anyone would have any more exact measurements? For instance, how for below axle centerline is the regular 60 pinion? How high above the axle centerline is the hi pinion 60? (to me it doesn't look like that much). And of course how much above or below centerline is the 14 bolt? To me the 14 bolt looked pretty close to even with the axle centerline. Reason is: why should I spend 3 grand extra (to get a hp 60) for what looks to me to be 3/4 inch of ground clearance (shaved 14 bolt compard to shaved hp 60) and about 1 inch pinion height?

Secondly, I heard that 14 bolt shafts taper from 1.5 inches at the splines to 1.3 inches in the center. Is this true? Does this affect strength at all? It would seem to me that it would, and that would be a knock against this axle, but I rarely hear of anyone breaking these shafts.

I also heard that the 14 bolt is C Clip. True? This would be abother knock, but again I rarely hear of it being a problem because the shafts rarely break, right?

Sorry if this is getting nitpicky, but I get pretty that way when I have to part with some of my hard earned money.... even 300$ of it!

Thanks.

[ 09-04-2001: Message edited by: ChadLloyd ]
 

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The 14 bolt can come as a c-clip or not. I'd get the full floater. Detriots bolt right in an open case. Disc brakes go on very easy. I asked around for where to get custom axles and everyone looked at me funny and said "Why". I don't recall the axles tapering down, but no one had heard of anyone breaking one on a full floater. Good Luck,
 

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I think the C-clip is probaly the non-full floating 14. It also has a smaller ring gear I believe. 9.5" versus 10.5" comes to mind.
Not sure if it has a different carrier and would require a smaller dia axle shaft.
I like the idea behind a full floater. Even if I do need custom shafts, I can carry one and change it quickly as long as I can get the broken end out if it should break.
I have heard the 14 called a 'shovel' though.
I plan on trying to shave one, if I screw up, they are cheap. <IMG SRC="smilies/smokin.gif" border="0">
 

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Copied this from somewhere, sometime, can't vouch for it, but believe it's reliable source:

"As far as I've seen every "Full Floating 14 Bolt" out of a Chevy (mainly 70's & 80's Vans) have the same type shaft. ~1.5" 30 Splines, then it necks down."
 

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there are two 14 bolts, light and heavy, the light ones are semi float c-clip and have 9 1/2" ring gear and a tapered shaft, but still equivalent to a D60.
the heavy 14 bolt is a full floater with 10 1/2" ring gear, only a few thousandths smaller than a D70. stout stuff here, found on most 73-87 3/4 ton trucks. and bolt directly to lighter trucks,blazers and burbs. the ones under vans are almost 3" wider.
i wonder why you want a dually though? unless you just happen to have it.
 

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Discussion Starter #6
a Cab and Chassis Dually 14 bolt is full floater, and without the dually wheels is 62 inches wide wms to wms - perfect for a jeep.

I measured the one I found as 62~63 inches wide. The drum brakes (as well as the entire axle) is HUGE, but will fit within a 15 inch wheel, although I kinda think I'd swap in disks cuz I can't see how my master cylinder would push that much fluid.
 

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Funny you should mention it, I just tore apart my 14 bolt today to start rebuilding it and everything, getting it ready for swap into my Scout. I picked up a full floater 10 1/4 (either that or 10 1/2) ring gear 14 bolt for 100 bux... and tore it apart and to my suprise its perfect... bearings and everything are great (this truck has sat for 8 years) The shafts in this particular one are 1.5" 30 spline all the way, no neck. These things are STOUT looking, I can't imagine breaking one of them... But, even if I did, it took us about 45 seconds to get the axle out, so it shouldn't be much of a problem at all. Hope this might help ya!
 

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Discussion Starter #8
Originally posted by Matt Green:
<STRONG>Funny you should mention it, I just tore apart my 14 bolt today to start rebuilding it and everything, getting it ready for swap into my Scout. I picked up a full floater 10 1/4 (either that or 10 1/2) ring gear 14 bolt for 100 bux... and tore it apart and to my suprise its perfect... bearings and everything are great (this truck has sat for 8 years) The shafts in this particular one are 1.5" 30 spline all the way, no neck. These things are STOUT looking, I can't imagine breaking one of them... But, even if I did, it took us about 45 seconds to get the axle out, so it shouldn't be much of a problem at all. Hope this might help ya!</STRONG>
Thanks guys, that does help. I now think the neck down ones must be the light duty 14 bolts with the 9.5 inch ring gear. The one I'm looking at should be the heavy duty model, 10.5 inch ring gear, but I'llmeasure before I buy.

Any thoughts on the pinion height?

Chad
 

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Chad,

I found (in all places a used tool store) a set of axleshafts (full floaters) new in box for a "Suburban", they were 1.5" (measured with the tape measure I carry...) and were 30 spline. They did NOT neck down.

BTW, I can get these for CHEAP if you want them. (Just find me a dually 14 bolt for my YJ <IMG SRC="smilies/biggrin.gif" border="0">).

Charly
 

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chad if it is the 62" wide dually rear it is the full floater so no need to worry about c-clips. yes the 14bolt shafts neck down a bit but every full floater i have ever torn apart had a bit of a neck down to the shafts. the splined area is always a tad bit bigger. a dana60 i once had was the same way. i doubt it necks down to 1.3"s though. you don't need to worry abbout breakage. big trucks running 44's don't have problems breaking 14bolts so i doubt you will in a jeep. oh yeah this weekend while working on my jeep i aired all my tires up to 30 psi and at 30 psi with 38.5 sx's my shaved 60 had 11 7/8" clearance and my shaved 143bolt had 11.5 so it is less than 1/2" difference. skip the big bucks on the custon high pinion 60 and get the 14bolt. with the $$$ you save you can find a used front 60 to build.just my op
 

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Discussion Starter #11
Thanks Brian. Would you agree with me that the 14 bolt pinion is more or less in line with the axle center line? I'm trying to figure out where my rear drive shaft would end up relative to my current setup. I can't see how it wouldn't be better than what I've got now, but I'd like to be certain.

Chad

[ 09-05-2001: Message edited by: ChadLloyd ]
 

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RCD60 pinion is 1.5" above centerline,
SCD60 pinion is 1.5" below centerline,
10.5" 14 bolt is roughly 2.5" below centerline.

Hope that helps!!
 

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Dude, the semi, or LD 14 bolt is JUNK. Gearman laughs at em all day. FF and you're good to go.
 

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The WMS to WMS for dually is 62 3/4 I measured it this Morning at Pick and Pull I was Bored !!!!!! <IMG SRC="smilies/thefinger.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0">

Loppy Go get it!!!

Adam,,
 
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