56s backwards and pinion angle

[Leper]

FWIW.... I moved my perches to get the angle you have. I do not run a CV. I run 56" springs with a shackleflip and a SYE on my 241. My axle is in the stock location. I keep hearing that the angles need to be the same. Mine are not, nor are my sons, in fact, I only wheel with one guy who has them the same. All of our trucks have your angle and have no problems so far. BTW my truck and my sons are DDs.

 

[sandawgk5]

I will prolly just get some zero rates to bring the ass end up to be level with the front. With a full tank and a spare in the rear it sits a little low.

Ira

 

[Mudzer]

What 85 Mudblazin is trying to say is. If you flip your 56" springs, I will move your rearend back 4" - thus your slip yoke will now be sitting on the floor and you will have other issues besides driveline angle.

Flipping 56" springs (long part of spring forward), moves your axle back 4". You do get some negative pinion angle as a result, but now you will require a new driveshaft.

Shimming or rotating the housing is your only solution. Also, as someone said - have you test drove the rig yet? If it does not vibrate, I would not touch it.

 

[sandawgk5]

Ya I have had it up to 75 on the interstate and the only time I get a vibe is when I let off of the gas and I am coasting. I think this vibe is due to the detroit in the rear. The truck actually rides pretty smooth for having airsoft pellets in the tires and unequal ujoint angles

Ira

 

[sandawgk5]

I dont want to cut and rotate cause when I get a double and new shafts they will be CV and I am setup perfect for a CV right now. Also as stated I have the large cast perches, not really sure if I want to wrestle them off .

Ira