rear springs

[LETZRIDE]

Re: rear springs

if you lower your car you need a PHB yes to correct the geometry....I am not lowered though, and I have 16 inch rims,....I am just bottoming out, and the car looks as though it is sagging...

I am more concerned if there is a way to add a stiffer spring to the back, without touching the front springs, and possibly using something like sway bars to offset the added oversteer my car is going to get...

or I am also curious as to how prone to oversteer my car is going to become if I just went ahead and got Z28 springs put back there...

[Larrymhemenez]

Re: rear springs

oh lol I got ya know sorry i didnt Read all the Way. yeah Man You Should Just up grade the Springs they sound Shot

[steddy]

Re: rear springs

Ok, last year, I was getting the same problem in the rear of my '96 Firebird. I went ahead and got heavy duty shocks, then bought a pair of Moog rear springs from summit ($45). I needed axle bump stops too, so I went with poly there. I also found a poly spring bushing to put in the top of the rear springs (by the way, I also have SFCs). Got everything put back together and haven't had a problem with bottoming since. It's a little stiffer in the rear, but I kind of like the solid, sure feel of it. I can put people in the back and carry groceries in it again, so I'm pleased with what those items have done.

[ssms5411]

Re: rear springs

I would just go with 98-02 springs in the rear if your not going to lower it. Then just look for some bigger sways later on when someone is selling them for cheap. The difference in the spring rate isn't that much 95lbs compared to 114lbs. I think you would only have problems if you were auto crossing. But for DD you should be fine with stiffer springs in the rear.

[Bonemaro]

Re: rear springs

I've got my stock 2000 springs if you are interested in them.

[LETZRIDE]

Re: rear springs

I would just go with 98-02 springs in the rear if your not going to lower it. Then just look for some bigger sways later on when someone is selling them for cheap. The difference in the spring rate isn't that much 95lbs compared to 114lbs. I think you would only have problems if you were auto crossing. But for DD you should be fine with stiffer springs in the rear.

what size sway bars should I be looking at if I go that route of getting the 114lb springs?

[ssms5411]

Re: rear springs

I would look at 32mm front and a 19mm rear would be nice.
Edit: The stock are 30mm front and 17 mm rear for the 93-97 and the 98 to 02 are 28 front and 15mm rear, so I think you would be fine with the sways. The 32mm front and 19mm rear would just be a nice upgrade.

[LETZRIDE]

Re: rear springs

what do I have back there now? 30 front 17 rear?

[ssms5411]

Re: rear springs

I edited before you posted ^^

[LETZRIDE]

Re: rear springs

lol got it...ok, well I think I am going to try and put on the z28 rear springs, which is also 98-02 rear springs and see what happens....I mean its an easy install by the looks of it anyways so if it doesnt work, it can easily be undone...Thanks.

now, as far as installs go...what exactly do I need, the springs, and the rubber thing that goes ontop correct?

[LETZRIDE]

Re: rear springs

Bam, how would these work? http://store.summitracing.com/partde...5&autoview=sku

they are the moog springs which have 104 lbs variable rate springs....

stock for me is 95.4lbs and the 98+ is 114lbs

therefore I think something like this would be right in the middle right? I understand that it is still going to effect the handling causeing oversteer, but I dont think going from 95.4 to 104 will make a HUGE difference?

[ssms5411]

Re: rear springs

They look good, you shouldn't have any problems with them, you should already have the rubber piece up top, if not checker has rubber replacement tops. Also you could do the heater hose mod, I think 5/8" heater hose and just put it in on the top of the coil, I've done it before pretty easy and it works. It would also lower the rear about 1/2" to 3/4".

[LETZRIDE]

Re: rear springs

beauty...thanks for the help guys....

one further question regarding the install itself...I simply jack the rear up (put it on ramps)....then put a jack under the diffy, unbolt the bottom shock bolts....jack the diffy up slightly and the springs should fall out right?

That rubber top should also fall out with the springs right?

The I just put the new top on the springs, put them in the same place as the old springs...lower the diffy back down, bolt up the shocks and I am done?

I dont have to undo the top shock bolts do I?

[ssms5411]

Re: rear springs

You might get away from not unbolting anything, just jack the car up and support the frame in the rear on both sides. The back end will be down, so you will be able to grap the springs out and put the new ones in. Might have to use some muscle to compress the new springs in, esp. if you have the rubber piece on top of it. If you do the heater hose mod they should just slide right in. Just make sure their lined up correctly when lowering back down. If your replacing shocks then you need to unbolt them. If you need more room to put the springs in then you can unbolt the shocks, just make sure you have a jack under the rear end (pumpkin) so it doesn't fall on you. Should be pretty easy if your just doing the springs.

[LETZRIDE]

Re: rear springs

Dont wanna do the heater hose mod since winters here suck...

how can you tell if the springs are lined up properly?

I have some car ramps...I don't suppose I can use that?

when I unbolt the shocks, am I just unbolting the bottom part, or both the top and bottom?