AAM slip yoke and u-joints??

[wforty94]

Does anybody know the part number for the correct AAM slip yoke off a 2008 Chevy Silverado 2500HD Duramax 4X4? I’ve been doing some research and I am even more confused now before I started. I was told NBS trucks have an AAM 1485 slip yoke that is unique in itself and the OBS trucks had a different one. Merchant Automotive has a Spicer one but i was told that one wont work and Spicer doesn’t make one that fits because its .005 off or whatever and I can only use an AAM 1485 one.

Can someone tell me the exact part number for the part I need? I want the same exact slip yoke that came with my truck from the factory to prevent any problems. ThankS!!

[New to me GMC]

Originally Posted by wforty94

Does anybody know the part number for the correct AAM slip yoke off a 2008 Chevy Silverado 2500HD Duramax 4X4? I’ve been doing some research and I am even more confused now before I started. I was told NBS trucks have an AAM 1485 slip yoke that is unique in itself and the OBS trucks had a different one. Merchant Automotive has a Spicer one but i was told that one wont work and Spicer doesn’t make one that fits because its .005 off or whatever and I can only use an AAM 1485 one.

Can someone tell me the exact part number for the part I need? I want the same exact slip yoke that came with my truck from the factory to prevent any problems. ThankS!!

Merchant doesn't have the spicer 1480 slip yoke on there website. They call it 1480 series, but with the price they are charging for it, its either an AAM 1485 piece, or a chinese Knock off 1480 trans slip yoke. Judging by the picture on there website, that an AAM 1485 series yoke. The AAM yokes have that step up near the ears that a damper presses onto for other applications.

[wforty94]

if anybody is interested, it is 15897991 from GM

[New to me GMC]

Originally Posted by wforty94

if anybody is interested, it is 15897991 from GM

Find an AAM distributor, it will probably be about half the money.

[wforty94]

does anybody know if Spicer makes these AAM 1485 U-Joints?

might as well replace them while i am replacing the slip yoke but i don't want to pay the dealer for them. supposedly they are also AAM 1485 specific?? hoping Spicer makes a replacement for them

[New to me GMC]

Originally Posted by wforty94

does anybody know if Spicer makes these AAM 1485 U-Joints?

might as well replace them while i am replacing the slip yoke but i don't want to pay the dealer for them. supposedly they are also AAM 1485 specific?? hoping Spicer makes a replacement for them

The only 1485 offering spicer has is axle joints ( inside lock).

When i use 1480 in place of 1485 series, i just used thin snap rings like these. American Ring and Tool - Specializing in snap rings, wire retaining rings, retaining rings, circlips, Eaton style, Belleville Disc Springs, Quarter Turn Lock Fasteners and Pins I would imagine you can find em at hardware stores and such. The only minor issue can be potential fitment in the rear diff yoke on a chevy. The majority of the time im replacing AAM unique stuff with Spicer joints is in dodges, which use a flange at the rear diff so it just gets snap rings all the way around.

[wforty94]

thanks for the info. the weird thing is i know people say the u-joints on the LMM(or any duramax) in general don't have grease fittings. well both the ones on my rear one piece aluminum driveshaft on my truck currently do and neither i or the original owner ever replaced them.

they seem perfectly fine but i just thought id replace them while i had the driveshaft out. guess i'll just change the yoke and reuse the u-joints.

[New to me GMC]

Originally Posted by wforty94

thanks for the info. the weird thing is i know people say the u-joints on the LMM(or any duramax) in general don't have grease fittings. well both the ones on my rear one piece aluminum driveshaft on my truck currently do and neither i or the original owner ever replaced them.

they seem perfectly fine but i just thought id replace them while i had the driveshaft out. guess i'll just change the yoke and reuse the u-joints.

Definitely have been replaced if they are greaseable, if they feel ok, send em.

[MTL_Dmax]

Originally Posted by wforty94

thanks for the info. the weird thing is i know people say the u-joints on the LMM(or any duramax) in general don't have grease fittings. well both the ones on my rear one piece aluminum driveshaft on my truck currently do and neither i or the original owner ever replaced them.

they seem perfectly fine but i just thought id replace them while i had the driveshaft out. guess i'll just change the yoke and reuse the u-joints.

I wouldn't bother replacing them, just regrease and go.