: Suspension on the 90-92 350 V8 models . . .



Aron9000
09-20-08, 04:19 AM
Just wondering what the differences were from past years and the 305 V8 cars. My car has new shocks, and it handles really well for such a large car, doesn't lean over hardly at all. Rides pretty stiff for a big car too, doesn't float at all.

I actually managed to out-run my buddy's Integra on some twisty back roads near my house(to be fair, I knew the road and he didn't). He was so pissed that he couldn't keep up with a 4000lb+ land barge.

96Fleetwood
09-20-08, 10:00 AM
I think the 5.7 liter cars has thicker front and rear sway bars... correct me if I am wrong.

gdorell
09-20-08, 11:06 AM
I think the 5.7 liter cars has thicker front and rear sway bars... correct me if I am wrong.

cant confirm the front sway bar. but i put a rear one off a 90 350 on my 89 307 fwb and noticed a huge difference.

jayoldschool
09-20-08, 01:10 PM
The 5.7 was part of the "trailering package", so I am sure that it included thicker sway bars. Spring rates might be higher as well. Can someone with a 5.0 and a 5.7 post their spid codes that start with "F", and we will be able to tell for sure?

csbuckn
09-20-08, 02:20 PM
what is a spid code

jayoldschool
09-20-08, 02:39 PM
The SPID is the "service parts identification" label. It is on the bottom side of the trunk on the left side. It gives three letter/number combinations for every feature and option on the car.

Some that you might recognize:

LT1 (MPFI 5.7)
L05 (TBI 5.7)
L03 (TBI 5.0)
MX0 (automatic trans)
G80 (positaction)

Look on that sticker, and you will know everything about your car. Very handy when you are looking at cars to buy, or checking out parts in the junkyard. For example, if you are on the hunt for big sway bars, you don't need to crawl under cars in mud at the yard to measure. All you need to do is know the SPID code for the bars you are looking for, and pop the trunk:thumbsup:

90Brougham350
09-20-08, 08:05 PM
I don't have the codes any longer, but I can tell you the springs and sway bars were bigger. The 350-optioned cars also had 12" drums instead of the normal 11". Or maybe it was 11" versus the normal 10".....been a while since I sold the '90. But yes, bigger sways, thicker springs, bigger drums.

Brian