one more soa question

[DansGreyMj]

if i did an soa when i swapped in my d44 would i need an sye kit

[CWLONGSHOT]

Likely no, but that will depend on your wheel base and the amount of total lift you end up with.

 

Like many others, 'm at 5.5 to 6" in a long bed and do NOT require a SYE. From the stand point of vibrations. BUT, a SYE is also a serious stregnth upgrade.

 

CW

[tjbliley]

The other issue which a SYE resolves is the driveshaft length issue. To find out if you may need one you would have to raise the frame or your rig as high as possible, then let the rear axle droop to max and see if your drive shaft is close to coming apart during any type of articulation. With leaves it is not as much a prob, but when you change much it will help to check.

[pingpong]

From a technical standpoint you don't need one. But from the reliability standpoint, I don't see why you wouldn't spend the money. It also boils down to a longevity issue. The runout on a tailshaft will cause seals to wallow out over time especilly on higher lifts (excess of 5"). It is just cheap insurance if you also grenade a driveshaft of a rear pinion

[Bounty Hunter]

The other issue which a SYE resolves is the driveshaft length issue. To find out if you may need one you would have to raise the frame or your rig as high as possible, then let the rear axle droop to max and see if your drive shaft is close to coming apart during any type of articulation. With leaves it is not as much a prob, but when you change much it will help to check.

You may need to add 1" to driveshaft lenght, or get a longer slipyoke. I did a SOA on a shortbed and didn't need a SYE. Just make sure your rear pinion is parallel with the TC rear output, or 1º down.

[Pete M]

Even more important than getting the right driveshaft angles is replacing the U-joints. U-joints do NOT respond well to changes in their operating angles.