Rear lower control arm bushings 99-02 firebird

[Tom Goldman]

Originally Posted by Jeremy K

This is the exact wording.

And there you have it , a Heim end is a spherical bearing ,the Global West arms are spherical does not matter if its non adjustable .
Don't get me wrong , I would love to use them on my Stock customers cars, I've inquired about them as recently as earlier this year. but here is where the "East Coast vs West Coast" rule books come into play , A matter of interpretation .
I won't risk a customers DQ for what is most likely a negligible gain over a bushing.

[SSDiv6]

Originally Posted by Tom Goldman

And there you have it , a Heim end is a spherical bearing ,the Global West arms are spherical does not matter if its non adjustable .
Don't get me wrong , I would love to use them on my Stock customers cars, I've inquired about them as recently as earlier this year. but here is where the "East Coast vs West Coast" rule books come into play , A matter of interpretation .
I won't risk a customers DQ for what is most likely a negligible gain over a bushing.

That is crazy Tom!
NHRA Tech needs to correct their interpretation of a heim end and spherical bearing.

A heim end is not a spherical bearing; the heim end contains a spherical bearing and all heim ends are threaded and adjustable.

The Global West bars are identical in form and fit and function as the OEM bars and not adjustable. The only difference is it has a solid bushing at one end and a spherical bearing contained at the other end.

Since needle bearings in lieu of bushings are allowed as a replacement to front lower and upper control arms, what is the difference?

[west coast]

I agree with SSdiv6 about what a Heim joint and a spherical bearing is. I did ask this question to NHRA about what a heim joint was? Heim joints are an adjustable threaded rod end. I should have gotten this in an email, but this was just an open question at that time. Have learned from my mistakes and get my question answered in emails for future discussion. My next question has to do with what is written in the rule book, a rear trailing arm my be replace with an NHRA accepted OEM type aftermarket unit. Under NHRA accepted products there is nothing list for suspension parts. So if you want to use one of these products you need to get a letter from NHRA saying it is accepted. Would be nice if they maintained a list of what has been accepted.

Is there anyone out there that has a letter from NHRA on rear control arms that has been accepted. And what is there application.

[SSGN]

If you want to keep the stock bars,HRPARTS offer a Delrin bushing and it seems to work very well. Best of luck.

[Mark Yacavone]

Originally Posted by west coast

I agree with SSdiv6 about what a Heim joint and a spherical bearing is. I did ask this question to NHRA about what a heim joint was? Heim joints are an adjustable threaded rod end. I should have gotten this in an email, but this was just an open question at that time. Have learned from my mistakes and get my question answered in emails for future discussion. My next question has to do with what is written in the rule book, a rear trailing arm my be replace with an NHRA accepted OEM type aftermarket unit. Under NHRA accepted products there is nothing list for suspension parts. So if you want to use one of these products you need to get a letter from NHRA saying it is accepted. Would be nice if they maintained a list of what has been accepted.

Is there anyone out there that has a letter from NHRA on rear control arms that has been accepted. And what is there application.

James, You figure it's not okay for a racer to make his own solid bushing trailing arms? I sure hope we haven't devolved to that state.

[brian schuetta]

I have pressed bushings into two sets of rc arms.