[DM3]

I replaced my old springs with new stock height springs.* I made the mistake of purchasing them on ebay.* When I received the springs, they were just in a box, no paperwork etc.* Since the suspension seem soft, I really dont know if I got what I ordered.
*
The car has the following, tubular arms, QA-1 TN505 non-adjustable shocks, QA-1 sway bar, replacement Moog 5370 coil springs?? (ID - 3.63", Bar Dia. - 0.64", Spring Rate - 357, Load lbs. - 2022, Install Height - 10.25, Free Height - 15.94, # of coils - 9.81, OD - 4.91")* When* I searched the Moog site, these springs does even come up for firebird.* So they might not even be Moog springs.*


So I am looking to replace the springs again, but this time replace with a stiffer than stock coil spring.* Any suggestions?

[455dan]

Originally Posted by DM3

I replaced my old springs with new stock height springs.* I made the mistake of purchasing them on ebay.* When I received the springs, they were just in a box, no paperwork etc.* Since the suspension seem soft, I really dont know if I got what I ordered.
*
The car has the following, tubular arms, QA-1 TN505 non-adjustable shocks, QA-1 sway bar, replacement Moog 5370 coil springs?? (ID - 3.63", Bar Dia. - 0.64", Spring Rate - 357, Load lbs. - 2022, Install Height - 10.25, Free Height - 15.94, # of coils - 9.81, OD - 4.91")* When* I searched the Moog site, these springs does even come up for firebird.* So they might not even be Moog springs.*


So I am looking to replace the springs again, but this time replace with a stiffer than stock coil spring.* Any suggestions?

Found this thread,

http://forums.maxperformanceinc.com/...d.php?t=840125

Like another poster in the thread, I have Guldstrand (G 11-001 springs) with about 2 3/4 inches of spring cut off,, but mine is a second gen. Not sure if these springs will fit in a 1st gen- but Formulas post 11 sure sounds like they will

Definitely not to soft.