Video of SMD installing Spohn....

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swtz71

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WOW that Tahoe is SICK!!

That's a great kit, now my question is how do you know if you need to adjust it?
do you just measure front of the wheel and back?
 

Physh1

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Well, if you wish to re-center the wheel in the openings than you'll need to extend/lengthen them equally. I have adjustable upper & lowers & I was more concerned about getting the pinion angle proper again.

The upper & lower adjustables overall will...
- allow pinion adjustment...
- allow you to recenter the wheel in the opening...
- firm up the suspension by taking all the stock "flexi" parts out...
- improve handling & ride...
 

ILLEGAL REGAL

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Well, if you wish to re-center the wheel in the openings than you'll need to extend/lengthen them equally. I have adjustable upper & lowers & I was more concerned about getting the pinion angle proper again.

The upper & lower adjustables overall will...
- allow pinion adjustment...
- allow you to recenter the wheel in the opening...
- firm up the suspension by taking all the stock "flexi" parts out...
- improve handling & ride...
you get uppers from the same place you got the lowers? Whats their design look like?
 

Tahoewhat

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WOW that Tahoe is SICK!!

That's a great kit, now my question is how do you know if you need to adjust it?
do you just measure front of the wheel and back?

Im w/ swtz. I dont know how you know if you need any of it. Im lowered 3/5 or more. Got the rear kit, but not sure how you know if you need these. Or at least need to save for this.. lol

Well, if you wish to re-center the wheel in the openings than you'll need to extend/lengthen them equally. I have adjustable upper & lowers & I was more concerned about getting the pinion angle proper again.

The upper & lower adjustables overall will...
- allow pinion adjustment...
- allow you to recenter the wheel in the opening...
- firm up the suspension by taking all the stock "flexi" parts out...
- improve handling & ride...

So i guess one way of telling is to just measure each side. Like how far the opening is front of tire and rear of tire.
When you say pinion angle? Im lost. Sorry for a newb ?, but you lost me like crazy on that. I can only assume, by lowering it the angle of the rear end. B/c i just put in trailing arm relocators, and had to push/twist the rear end to install them. Didnt seem right. Is that what you mean?
 

ILLEGAL REGAL

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pinion is the front of the rear end that sticks out like a nose where the driveshaft connects. When you lower it you change the angle relationship of it and the driveshaft.
By using these arms you can adjust it back to a "good" angle, I never checked mine but I dont think unless you're lower than a true 5" the angle would be much of an issue you'd notice in driving.
For performance you can adjust the pinion angle to delete wheel hop.
Also you can adjust the wheelbase with these, when you get lower the rear wheels end up closer to the front edge of the wheelwell and the wheel isn't centered front/rear. These will allow you to fix this.

Besides the above they will give you a firmer ride, the factory uses rubber bushings that mush and stamped steel arms which flex. These use a stiff delrin and possibly a poly urethane bushing which is much firmer than rubber and about as close to steel on steel as you can get. And they're a tubular design which wont flex. The ride will not really be firm, your springs and shocks control that, but it should feel more planted to the road.
 
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Tahoewhat

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pinion is the front of the rear end that sticks out like a nose where the driveshaft connects. When you lower it you change the angle relationship of it and the driveshaft.
By using these arms you can adjust it back to a "good" angle, I never checked mine but I dont think unless you're lower than a true 5" the angle would be much of an issue you'd notice in driving.
For performance you can adjust the pinion angle to delete wheel hop.
Also you can adjust the wheelbase with these, when you get lower the rear wheels end up closer to the front edge of the wheelwell and the wheel isn't centered front/rear. These will allow you to fix this.

Besides the above they will give you a firmer ride, the factory uses rubber bushings that mush and stamped steel arms which flex. These use a stiff delrin and possibly a poly urethane bushing which is much firmer than rubber and about as close to steel on steel as you can get. And they're a tubular design which wont flex. The ride will not really be firm, your springs and shocks control that, but it should feel more planted to the road.

Thank you very much. I cant even ask a question. lol (as in if i was still confused) You answered that very well for me. Thank you. Trying to always learn. If you dont ask, you'll never learn is my thing.. makes sense to me.

Appreciate it very much illegal. Sounds like something i need to add to my list, since i think im at 5". Could always use a firmer ride in the tahoe.
 

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