Axle U Bolt Torque Specs?

[2fine69s]

Hey guys,
Just put the 8.75 back in my 69 Dart. Does anyone know the torque specs for the axle U-bolts?
Thanks,
Martin

 

[hotrod426]

go to(eatondetroitspring.com ) there is a good tech section you might find answer there

 

[YoungBlood]

I'm almost where you are, and I've been instructed that 45lbs is where you want to be for the u-bolts.

The leaf-spring needs to effectively "suspend", and cranking down too much prevents this, keeping the spring from working as designed (correct pinion-angle is very important to this function as well).

Tightening down too much will affect both traction and ride.

 

[2fine69s]

Thanks Guys,
Your both a big help!
Martin

 

[RustyRatRod]

Yup. 45 LB FT is it.

 

[YoungBlood]

You're welcome Homie. You probably already got this part, but I wanted to also mention that after installation, drive the car briskly for a week (or 100 miles or whatever) and re-torque those u-bolts.