VNL Cab Suspension Torsion Spring

Need some help from the folks who have changed these before, either replace with same or install the metal bracket?

Also do you need to support the cab in order to do this or will the air bags support the cab and you just need to raise one side to get the arm reconnected?

Need to do mine and trying to decide whether to stay with the same torsion spring or the plate and if it's a big issue to realign the cab (I have a weed burner exhaust so can't do the strap as I've seen done before to pull it over).

Any advice is appreciated...

Mark

 

If you have a flatbed, maybe you could park next to it and use a 4" strap and winch to pull the cab towards the flatbed. Just make sure you've got a secure anchor point for whatever hook you're using.

 

I used original and it didn’t solve the problem. I changed basically all the cab mount bushings front and back. Had alignment check and done but the cab was still shifting so I installed the plate and no more problems. Cab is now centered in the back. I used the leveling valve behind the cab to raise it up and stuck piece of wood to support then installed the plate and all good now. Hope this helps!

 

There is an aftermarket part that uses the harder polyurethane bushings. I think it's from Gaff. When people change these out they also don't replace the torsion bar and expect it to work with worn bushings. You have to change both bar mounts not just the easily accessible one from the back. It wouldn't hurt to consider the cab leveling valve as well since it has been redesigned from the factory spec valve. The plates are for day cabs that don't need to sway as much in heavy winds because it's not a huge sleeper cab sitting on the rails. If you pay close attention to your driving you will hear and feel in your feet when you need to change cab mount bushings. The driver side cab mount bushing is literally under your feet in the driver's seat. The cabs lean to the right because all of the torsion is pulling in that direction. This is rectified by replacing all of the components not just the brackets.

 

Try this part nr 20727214 . I got same problem . Hear is the yt link :