Need help with u joints please......................

Robby Avery

GM TECH @ FENDER GMC
Jul 31, 2008
820
2
18
Norman Park, Georgia
Looking around merchant autos website what's the best u joints now I noticed there is a 1410 and 1480 both look to be same size and both offer serviceable and not serviceable with/without grease fitting option which ones the better way to go thanks in advance
 

andy-stevenson

New member
Jul 7, 2013
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They're different sizes.

The 1410 has a 1.2" cap
The 1480 has a 1.4" cap

Take another look at Merchant's site.

But in terms of the greaseable/non greaseable some people say the greaseable are weaker because they're hollow.
 

CarolinaHD

Member
Feb 8, 2011
969
6
18
NC
1410 in most one piece driveshafts 2001-2006
1480 in all ZF6 trucks and most 2 piece steel shafts 2001-2006
1480 in 07.5+

Most likely both your trucks in your signature have 1410 series u joints
 

IOWA LLY

Yes, its really me
Feb 23, 2007
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1410 in most one piece driveshafts 2001-2006
1480 in all ZF6 trucks and most 2 piece steel shafts 2001-2006
1480 in 07.5+

Most likely both your trucks in your signature have 1410 series u joints
Interesting. In regards to 01-06 trucks I've found most of the one piece steel shafts in EC/SB, and EC/LB trucks use the 1480 joints.

Most two piece steel behind an Allison are 1410.

All the aluminum one piece shafts are 1410. (Again 01-06).

Sent from my SM-N920V using Tapatalk
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,314
1,601
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Mid Michigan
Typical GM....confusing as all hell. Best bet is to measure what you have, then go from there....
 

CarolinaHD

Member
Feb 8, 2011
969
6
18
NC
Interesting. In regards to 01-06 trucks I've found most of the one piece steel shafts in EC/SB, and EC/LB trucks use the 1480 joints.

Most two piece steel behind an Allison are 1410.

All the aluminum one piece shafts are 1410. (Again 01-06).

Sent from my SM-N920V using Tapatalk

Sorry about that :eek: I'm sure you have more experience with them than me
 

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
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Also keep in mind the 1410 and 1480 are for aluminum shafts predominately. Steel shafts were made by a different company, and they receieved 1415 and 1485's. They are almost identical, but are .010 narrower. It gets REAL confusing with GM. MANY people have put 1410's into shafts that came with 1415's, and the only way you know is the u-joints will be VERY tight. They make circlips that are .005 thinner to allow the use of the different joints in the other size shaft.
 

TeaBagger2006

Im a Garrett Nut Swinger
May 11, 2008
3,123
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Bis ND
Also keep in mind the 1410 and 1480 are for aluminum shafts predominately. Steel shafts were made by a different company, and they receieved 1415 and 1485's. They are almost identical, but are .010 narrower. It gets REAL confusing with GM. MANY people have put 1410's into shafts that came with 1415's, and the only way you know is the u-joints will be VERY tight. They make circlips that are .005 thinner to allow the use of the different joints in the other size shaft.

Ferm ,you just answered something that's been bugging me for a long time. That explains why the 1410 I keep buying don't fit perfectly. I have a 2 piece steel shaft. That explains why they are sooooo damn tight. :mad::mad::mad:
 

bmc1025

Member
Jan 25, 2013
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Big Bone, KY
Also keep in mind the 1410 and 1480 are for aluminum shafts predominately. Steel shafts were made by a different company, and they receieved 1415 and 1485's. They are almost identical, but are .010 narrower. It gets REAL confusing with GM. MANY people have put 1410's into shafts that came with 1415's, and the only way you know is the u-joints will be VERY tight. They make circlips that are .005 thinner to allow the use of the different joints in the other size shaft.

Did they do something similar in the gmt400 platform?
 

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
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Did they do something similar in the gmt400 platform?
Not that I know of. The GMT-400 used the 3R or S44 for most all the half tons with auto's, the manual trans seemed to get 1330's, and 3/4 ton and up got the 1350 for the most part. GM lost there minds with the GMT-800 and the u-joints with the 1410 and 1415, or the 1480 and 1485. Dimensionally they are almost identical with only a .010 difference in width. You can get the .005 thinner clips as most places don't stock the 1415 or 1485, and if you run the regular they are TIGHT and WILL vibrate.
 

Robby Avery

GM TECH @ FENDER GMC
Jul 31, 2008
820
2
18
Norman Park, Georgia
Where I stand right now would be the 1410 joint being that my wifes 2002 had a two piece but now has a one piece aluminum shaft I swapped in from a buddy's truck who had a ccsb 2004 lly that was lifted and need a longer shaft than stock so he gave me the stock one free it's giving me many years now since 2009 of worry free service but I feel its time to show it some love :thumb: