U-bolt Torque

[Patrick H]

Anyone know the torque spec for the rear axle U-bolts, '01 2500LD?

I can wait until tomorrow and check Shop Key at work, but I'd like to torque them this evening.

Thanks !

[oldschool327]

Pirate 4x4 says 89 ftlbs for the 16mm versions you should have

[Patrick H]

I

Pirate 4x4 says 89 ftlbs for the 16mm versions you should have

I think they're 14mm. Lemme go check.

Thanks!

[Nytemare]

I've never torqued one...just gunned them on.

[Patrick H]

Yeah, I've run plenty of them down with the impact wrench. I guess I'm getting picky in my old age.

These are 13mm.

[Patrick H]

Maybe they're 12. 13mm is pretty uncommon. Reckon they're 10.9? 80lb. ought to be close.

[oldschool327]

My 1500 has the 13mm and they are 78 ft lbs.

[bossier62guy]

Maybe they're 12. 13mm is pretty uncommon. Reckon they're 10.9? 80lb. ought to be close.

 

Not sure about the 2500 but it's only 18lb ft for the 1500.

[Patrick H]

18lb ft for axle u-bolts?

 

I torqued them to 80. Felt about right .

Thank you all..

[bossier62guy]

18lb ft for axle u-bolts?

 

I torqued them to 80. Felt about right .

Thank you all..

 

Yep, that's what the service manual says LOL....

[oldschool327]

18lb ft for axle u-bolts?

 

I torqued them to 80. Felt about right .

Thank you all..

 

Yep, that's what the service manual says LOL....

 

 

 

18 thats nuts!

 

Here is the tourque spec link on this site.

http://www.gm-trucks.com/forums/index.php?...&hl=exhaust

[bossier62guy]

18lb ft for axle u-bolts?

 

I torqued them to 80. Felt about right .

Thank you all..

 

Yep, that's what the service manual says LOL....

 

 

 

18 thats nuts!

 

Here is the tourque spec link on this site.

http://www.gm-trucks.com/forums/index.php?...&hl=exhaust

 

 

No actually that's "bolts" :-)....

[Nytemare]

Lets just say Tight...

 

A 12mm bolt is about 7/16"...which is generally torqued to between 65 and 75 ft-lbs.

[bossier62guy]

Lets just say Tight...

 

A 12mm bolt is about 7/16"...which is generally torqued to between 65 and 75 ft-lbs.

 

I just changed my u-joints a few weeks ago and that's the method I took.....hand tight.....but the service manual says 18ft lbs for a 1500.

[Nytemare]

Lets just say Tight...

 

A 12mm bolt is about 7/16"...which is generally torqued to between 65 and 75 ft-lbs.

 

I just changed my u-joints a few weeks ago and that's the method I took.....hand tight.....but the service manual says 18ft lbs for a 1500.

 

U-bolts and U-joint bolts are two totally different things.

 

U bolts hold the springs on the axle.