35spl, semi float rear 60
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Post Fiend
Joined: Nov 2001
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From: Coutts Canada
35spl, semi float rear 60
Now i got to thinking about the rear semi float 60 that is currently sitting underneath my mudder when i was checking everything out for the upcoming 10.25 swap, and i've been wondering exactly how strong is a rear semi float D60 with 35 splines (i looked up the BOM to make sure)?
Now this these axle would be a c-clip type axle correct (from what i know this is what i think it is)? Now my question with these axle shafts is could they be made to fit a 9" rear providing i had a 35 spl carrier for it (i'm debating on upgrading the rear in my flareside to 35 spl if this could be done, or for my future tough truck/prerunner project once i'm done with school in 3-4 years)?
Now this these axle would be a c-clip type axle correct (from what i know this is what i think it is)? Now my question with these axle shafts is could they be made to fit a 9" rear providing i had a 35 spl carrier for it (i'm debating on upgrading the rear in my flareside to 35 spl if this could be done, or for my future tough truck/prerunner project once i'm done with school in 3-4 years)?
Logistics Pro
Joined: Jan 2002
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From: GANS
well, it isn't going to be a 35 spline D60. it is going to be a spline 30.
I don't think it is much stronger than a 31spline 9"
the only 35 spline 60s are in the front, and if you have a 70 in the rear.
now, if you are lucky to have a Dana 61 like me, you can put 35 splines in easy, but you can only have like 4.11 gears
I don't think it is much stronger than a 31spline 9"
the only 35 spline 60s are in the front, and if you have a 70 in the rear.
now, if you are lucky to have a Dana 61 like me, you can put 35 splines in easy, but you can only have like 4.11 gears
Last edited by bremen242; Apr 8, 2005 at 06:39 AM.
Hotshot
Joined: Dec 2003
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From: iowa
if you truly have a 35 spl semifloat D60 yes you can put them into a 9" but you will have to probably switch the axle ends as I believe the D60 used a slightly larger bearing that won't work in the 9" housing or you can buy the mark williams 9" ends for the bigger axle. The brakes are the same for both the 9" and SF D60. next you will need the 35 spl carrier which will require the large bearing drop out.
Posting Guru
Joined: Dec 2003
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From: Centerville, Iowa
Rob just loves answering questions that cost coin.
What is the primary weak spot in the D60 rear's? Just that the shafts are a fraction of what D70's are in terms of strength or is it in the diff itself?
What is the primary weak spot in the D60 rear's? Just that the shafts are a fraction of what D70's are in terms of strength or is it in the diff itself?
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Post Fiend
Joined: Nov 2001
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From: Coutts Canada
Thanks for the info rob, for the new carrier, if its possible i would see if the 31sp big bearing carriers i have can be machined (neighbor has the equipment), but if not i know where i can get a used 35 spline carrier (local drag racer here in edmonton has some).
Yeha your right jacob, the 30spl shafts in the rear 60's aren't worth the trouble when you can get a dana 70/10.25/14 bolt of the same price, if not cheaper and its far stronger, granted the 60's are smaller in size and have a larger aftermarket support to make it stronger than the above mentioned axles, unless your rich it really isn't worth it.
Yeha your right jacob, the 30spl shafts in the rear 60's aren't worth the trouble when you can get a dana 70/10.25/14 bolt of the same price, if not cheaper and its far stronger, granted the 60's are smaller in size and have a larger aftermarket support to make it stronger than the above mentioned axles, unless your rich it really isn't worth it.
Hotshot
Joined: Dec 2003
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From: iowa
if you have a drop out that has the 3.06" bearings that can be used upto 35spl, but for 40 spl you need the 3.250 bearing carrier like one from strange. you can also buy a 35spl locker, or spool for the 9" ford and the spools aren't to bad on price probably cheaper than having one recut for the bigger splines.
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Logistics Pro
Joined: Jan 2002
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From: GANS
my question is if you can easily swap 35 splines FF shafts into a dana 61. And I am wondering if you can get 4.56 gears in a dana 61 without a bunch of spacers
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Its Comin Right for us!
Joined: Feb 2005
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From: GA
35 spline dana 60 shafts and 35 spline 70 shafts are = in strength, assuming they are both full float
for a dana 61 you can buy a ring gear spacer from most any gear place
any full float 60 can be 35 plined id you bore the spindles and put 35 spline side gears in it
for a dana 61 you can buy a ring gear spacer from most any gear place
any full float 60 can be 35 plined id you bore the spindles and put 35 spline side gears in it
Its Comin Right for us!
Joined: Feb 2005
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From: GA
Originally Posted by bremen242
I don't think I need to bore the spindles on mine... 30 spline shafts are what, 1.31" ? if so I have about 1/4" on either side of the axle shaft when in the spindle..
yea, but it necks up at the splines, and it necks up right at the flange
Cross-Country
Joined: Aug 2003
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From: Barneyville USA
35 Spline axles....
I just got done doing 35 splines in my D60. 35 spline axles are 1.500 " in diameter. They neck down slightly (Dutchman's do at least) right after the splines. We bored the spindle tubes out to 1.510 just to clear the splines. Also had to grind the ends of the spindles flush with the lock-nuts. Do this with the drum and bearings on the spindle tube. Also, the inside of the tube has to be radiused slightly. Dutchman's shafts are radiused to the flange. The flange has a flat inside face, not like the concave recesses on the stock Dana shafts. When you have the 35 splines & 30 splines side by side, the difference is striking.
Bill
Bill
