Suspension , Brake & Wheel upgrade complete !!

[dynoman]

When buying studs , the stud length is measured from underneath the head of the stud . So measure from the back of the rotor or back of the axle flange . Above , in the picture of my rear wheel , those are 2 1/2" studs pressed into stock axles . That is the minimum length I would use with these wheels & lugs . You don't have to remove the axles to install 2 1/2" studs , you just have to rotate the axle to get the most room ( there is one low spot ). I seated the studs with spacer then a washer & anti sieze , old steel lug nut and impact wench . They pulled right in .
The front wheel mounting thickness is .60" , & the front lugs are 1" nut height ( http://www.championbillet.com/short-shank-lug-nut-open-end/ ) .
The rear wheel mounting thickness is 1.25" ( http://www.championbillet.com/long-shank-lug-nut-open-end/ )

 

[dynoman]

So on the rear studs , 2 1/2" , you have 1.25" wheel thickness + 1" stud nut height + approx. .25" axle flange & drum thickness = 2 1/2" and it looks like the picture above . Sam

 

[wb_7354]

I'm waiting on new pics. Please


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[evil666]

When buying studs , the stud length is measured from underneath the head of the stud . So measure from the back of the rotor or back of the axle flange . Above , in the picture of my rear wheel , those are 2 1/2" studs pressed into stock axles . That is the minimum length I would use with these wheels & lugs . You don't have to remove the axles to install 2 1/2" studs , you just have to rotate the axle to get the most room ( there is one low spot ). I seated the studs with spacer then a washer & anti sieze , old steel lug nut and impact wench . They pulled right in .
The front wheel mounting thickness is .60" , & the front lugs are 1" nut height ( http://www.championbillet.com/short-shank-lug-nut-open-end/ ) .
The rear wheel mounting thickness is 1.25" ( http://www.championbillet.com/long-shank-lug-nut-open-end/ )

Ok, so if I got this right, I need 1/2 inch rear studs (21/2 inch long) with an opened end lug nut. So this means when I feel like putting the stock wheels on, the studs are going to stick out like crazy.
In the front, I could leave the stock studs, right?
Do you think I could use the same lug nuts that you mention above for both the front and rear stock wheels?
Thanks for all your help Sam, really appreciate it.

 

[dynoman]

You don't " need " to go to 1/2-20 rear studs if you can find 2 1/2" long 12-1.5 thread with .509 knurl . I forgot you have Moser axles and I didn't ask ,
but are your studs on the rear axle threaded in or pressed in ??

Do you think I could use the same lug nuts that you mention above for both the front and rear stock wheels?

No , you'll need a tapered style lug for stock wheels . These might work on the rear with stock wheels with 1/2" studs, http://www.gorilla-auto.com/lug-nuts-page-04 . or go to a 1" open end to take up some of the thread . The main thing is measure , measure , and measure again .

 

[dynoman]

I'm waiting on new pics. Please


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We got to roll it outside , no driveshaft yet , ordering it tomorrow . I want to put it in the same spot and take a picture to make a comparison , a little before and after .
I still have the same springs in , only without the air bags so it should sit lower ...... and not hit !!
Bill , I'll let you come over and help push .

 

[evil666]

You don't " need " to go to 1/2-20 rear studs if you can find 2 1/2" long 12-1.5 thread with .509 knurl . I forgot you have Moser axles and I didn't ask ,
but are your studs on the rear axle threaded in or pressed in ??

No , you'll need a tapered style lug for stock wheels . These might work on the rear with stock wheels with 1/2" studs, http://www.gorilla-auto.com/lug-nuts-page-04 . or go to a 1" open end to take up some of the thread . The main thing is measure , measure , and measure again .

Hey Sam
I don't know if my studs are threaded or pressed, can't remember. I would have to take off a wheel and check.
Thanks again
Marco

 

[wb_7354]

We got to roll it outside , no driveshaft yet , ordering it tomorrow . I want to put it in the same spot and take a picture to make a comparison , a little before and after .
I still have the same springs in , only without the air bags so it should sit lower ...... and not hit !!
Bill , I'll let you come over and help push .

I'll steer! [emoji15] I promise not to hit your house again. Better watch me though.


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[dynoman]

On second thought ...... just watch !!

 

[JustABuick]

One of my favorite turbo Regals!

 

[1986 Buick GX1]

On the rear , I went from a 15x9 ( I thought they were 15x10 ) with the exact same 4" back space . The new mounted tires were 1 1/2" wider at the sidewall , and went from 1/4" tire to frame , to 1" with the new wheels !!! I don't have an explanation for this and yes I measured them side by side with straight edges more than once . Sam

I believe with a 9" wide wheel and a 10" wide wheel, both with a 4" backspace, the inside of the wheel will be the same distance from the frame.
By adding 1" to the outside of the wheel the tire is pulled away from the frame and the center line of the wheel and tire are now 1/2" out farther as well.
I hope this makes sense.

 

[dynoman]

Yup, makes perfect sense to me now . At first I thought they were both 10" wheels , then discovered they were 9" & 10" and mistakenly thought it would add to each side . Thanks for clearing that up.

 

[evil666]

When buying studs , the stud length is measured from underneath the head of the stud . So measure from the back of the rotor or back of the axle flange . Above , in the picture of my rear wheel , those are 2 1/2" studs pressed into stock axles . That is the minimum length I would use with these wheels & lugs . You don't have to remove the axles to install 2 1/2" studs , you just have to rotate the axle to get the most room ( there is one low spot ). I seated the studs with spacer then a washer & anti sieze , old steel lug nut and impact wench . They pulled right in .
The front wheel mounting thickness is .60" , & the front lugs are 1" nut height ( http://www.championbillet.com/short-shank-lug-nut-open-end/ ) .
The rear wheel mounting thickness is 1.25" ( http://www.championbillet.com/long-shank-lug-nut-open-end/ )

Hey Sam
I guess I need longer wheel studs for the front too. Are the OEM wheel studs in the front the same length as the rear?
If the front is also a 1 1/4, moser sell a 1 1/2 or the next one would be the same one as the rears which are 2 1/2. That would look really ugly cause they would stick out like crazy

 

[dynoman]

I think the 1 1/2" studs might be a tad short. If your going with Champion wheels the fronts are .6" thick + 1" stud height + thickness of rotor mounting , so you would be inside the lug nut hole . You could get 2 1/2" studs and cut to length . Just leave them about 3/8" out past the lug nuts and clean up the end of the threads .

 

[evil666]

I think the 1 1/2" studs might be a tad short. If your going with Champion wheels the fronts are .6" thick + 1" stud height + thickness of rotor mounting , so you would be inside the lug nut hole . You could get 2 1/2" studs and cut to length . Just leave them about 3/8" out past the lug nuts and clean up the end of the threads .

Thanks again for your advice.