frame mods? 68 GTO

[agto8u]

Looking for advice and/or suggestions on modifying the pick-up points in the front and rear suspension. The only reason I'm asking is since I already have the body and frame separated, now would be a perfect time to make any changes that would improve the suspension. I'm not looking to build a track only car, just make it drive, ride and handle as best I can.



What I have:
68 GTO
Pontiac 400 and Magnum T56
BOP 10 bolt with 3.55's and Eaton Posi
ABC Perf. frame stiffening plates and alum. body bushings
Chassisworks Billet g-link rear coilover kit (single adj.) with their rear sway bar
Lee Mfg. 670 box and matched pump from SC&C
Borgeson vibration dampner, shaft and universal joints

What I plan on adding:
SPC uppers with Tall AFX uprights
tubular lowers possibly SPC
Hellwig front bar
Baer 14" front and 13" rear pro plus
Rushforth battery in 18f and r or 18f and 20 r. Width 9-11 as much as possible within stock wheelwell

Planned Modifications:
Remove rear crossmember and add tubular ones with mounts for coilovers, UCA's and swaybar end links
removable tranny support/crossmember
Tall upper coilover mounts and move lower mounting point towards ball joint
???suggestions??

I haven't started a build thread b/c I only get to work on the car a max. of 2 days per week and updates would be few and far between. Hopefully that will change soon. Hoping to get some input from the resident guru's i.e Mark, Ray, Bryce etc....

[SShep71]

Hey man you have some good ideas, there are a few of us on here doing A bodys. I just finished up my frame before going away. You can check out what I did on my build page. I didnt do the suspension mounting point mods you are looking to do. You should call and talk to marcus at SC&C and tell him your plans. The rear crossmember may be a good idea, but I am not sure how well you will make gains trying to move the front suspension mouting points while using the aftermarket susp components. Most of the components are designed to bolt on in stock mounting point and provide the corrections. I hope this helps! Also look up Tim's Widowmaker chevelle thats another good build thread.

My thread: https://www.pro-touring.com/showthre...ILD&highlight=

[dhutton]

These guys have some nice parts for A bodies:

http://abcperformance.net/

[agto8u]

sshep71 thanks. I have looked at your entire build along with widowmaker and a few others. Tons of great work and ideas. Yeah, I'm gonna call Mark when I pull the trigger on the parts. Just wanted to get some other view points and avoid a 2 hour phone conversation. I don't mean that in a bad way, he is a great guy and really knows his stuff. I guess that is my question? Will modifying the pick-up points along with adding the above listed parts give me greater improvements than just adding parts? That sucks about the hobby shops (MWR) good luck with that. Who are you deployed with?

Don, yup I have their boxing plates and I'm waiting for the solid alum. mounts to ship out.