Originally Posted by openupitsdave

.. any other cars use the same springs?

Originally Posted by openupitsdave

Im sure the G35 does.. any other cars use the same springs?

Im asking because im looking for a set of used Eibach Pros on Craigslist.. No results for a 350z in my area :[ Suprised actually..

Originally Posted by DesertSleeper

Even if there were, u don't wanna use a spring that isn't designed for the z. The only known compatible, as previously stated, would be the G35 springs, but being designed to hold more weight, u would end up with half the drop advertised, if that. New pro kits go for around $250ish shipped, save up and do it right.

Originally Posted by openupitsdave

Thanks guys.. any springs with same spring rates/size?

Also, I see a lot of varied suggestions on what brand springs to buy. I always thought Eibach was the way to go, but Im seeing a lot of people saying to go with Tein or Tanabe.... thoughts?

Originally Posted by openupitsdave

Thanks guys.. any springs with same spring rates/size?

Also, I see a lot of varied suggestions on what brand springs to buy. I always thought Eibach was the way to go, but Im seeing a lot of people saying to go with Tein or Tanabe.... thoughts?

Originally Posted by openupitsdave

I dont plan on tracking my car but I do like to have an 'in-control' feel when im spirited driving.. I really only want an inch drop. I heard anything past that will require camber arms and toes...

I dont want to pay too much on shocks...Actually anything that is suited for an inch drop and is around the same price, or a little more than OEM shocks, is good enough for me...Of course they must be decent sport ones though, but still comfortable enough as DD....


Maybe a good all-around shock?

Originally Posted by openupitsdave

I dont plan on tracking my car but I do like to have an 'in-control' feel when im spirited driving.. I really only want an inch drop. I heard anything past that will require camber arms and toes...

I dont want to pay too much on shocks...Actually anything that is suited for an inch drop and is around the same price, or a little more than OEM shocks, is good enough for me...Of course they must be decent sport ones though, but still comfortable enough as DD....


Maybe a good all-around shock?

Originally Posted by Gsedan35

Just posting this to provide information for more informed choices.

NOTE!: Any aftermarket 350Z spring will lower a coupe a additional ½” over and beyond the published drop amount for the 350Z. For sedan owners, the same applies to you, except you will gain a additional 1”, not just ½”

Oem linear springs
G35 coupes with oem 17’s & 18’s
G35 sedan’s with sport suspension
350Z’s 2003/2004 (unrevised)
Front:314 Rear:342

Oem linear springs
G35 sedan's with non sport
Front: 283 Rear: 308

Oem linear springs
G35 coupes 2005/2006 with oem 19’s only
350Z 2004.5 to 2008 (revised suspension)
Front:314 Rear:427

Nismo Z (2007-2008) ride height is the same as other Z models linear front, progressive rear (initial and final rates shown)
492/336-672


Eibach 350Z progressive springs 1”/1” drop* on 350Z G35 drops will be higher
Spring rates in LBS initial/final front 296/384 initial/final rear 316/421

Eibach G35 Coupe progressive springs 1.1”/1” drop on G35 coupe
Spring rates in LBS initial/final front 229/337 initial/final rear 274/463

Eibach G35 Sedan 1.1”/1.1” drop on sedan
Spring rates in LBS initial/final front 259/334 initial/final rear 359/416
Side Note: The sedan Eibachs were developed on a non sport sedan, they did not use a sport suspended car to do the R&D work.

Eibach 350Z sportline progressive springs 1.2"/1.2" drop G35 drops will be higher
F: 239/400 R: 257/435

Eibach G35 Sedan sportline progressive springs 1.6"/1.6" drop
F: 171/400 R: 285-502

RSR 350Z linear springs .6”/.6” drop on 350Z G35 drops will be higher
Spring rates in LBS 345/417

RSR G35 coupe progressive springs 1”/1” G35 coupe drop
Spring rates in LBS 315/315
Beware, a 1" drop spring with NO increase in stiffness vs oem.

Hotchkis 350Z Linear springs .6”/.8” drop on 350Z G35 drops will be higher
Spring rates in lbs 340/330

Cobb Tuning 350Z Linear springs .75"/.9" drop G35 drops will be higher
Spring rates 436/535 (as shown here http://g35driver.com/forums/brakes-s...new-parts.html )
UPDATE 7/18/11: Cobb discontinued this spring some time ago, some resellers might still have a set or you might have to make a wanted to buy thread to find a set.

Tein S-tech 350z (fronts are progressive, rears are linear) .7”/.6” drop on 350Z G35 drops will be higher
Spring rates in LBS 386/402 (estimated front intial rate is 327lbs)

Tein H-tech 350z linear springs .3”/.2” drop on 350Z G35 drop will be higher
Spring rates in LBS 358/375

Tein H-tech G35 (fronts are progressive, rears are linear) coupe drop .6"/.3" sedan drop 1.4"/.7"
Spring rates in lbs 324/260 (final rates only, softer intial front progressive rate unknown)

Tein S-tech G35(fronts are progressive, rears are linear) coupe drop 1.2"/.9" sedan drop 2"/1.3"
Spring rates in LBS 358/274 (final rates only, softer intial front progressive rate unknown)

Tokico D-spec shock & spring package
G35 - DSK509 - 240f/300r - Linear Springs
350Z - DSK512 - 375f/375r - Linear Springs 1"/1.5" (2"/2.5" drop if installed on a G35 sedan. 1.5"/2" if installed on a G35 coupe)

Tanabe GF210 Series 350Z progressive springs 1”/1.2” drop on 350Z G35 drops will be higher
Spring rates in LBS 336/375 (only peak rates are published, softer initial progressive rates unknown)

Tanabe NF210 Series 350Z progressive springs 1.2”/1.2” drop on 350Z G35 drops will be higher
Spring rates in LBS 314/353
Beware, a 1.2" drop spring is no increase in stiffness vs oem, G35 users have it even worse since your oem shocks are 3/4" taller vs oem Z shocks.

Tanabe NF210 Springs G35 COUPE progressive springs 1”/,6” drop on G35 coupe G35 sedan drop will be higher
Spring rates in LBS 297/336
Beware, a 1" drop on springs that are softer then oem springs.

Tanabe DF210 G35 COUPE progressive springs 1.7”/1.3” drop on G35 coupe, G35 sedan drop will be higher
Spring rates in LBS 308 /353
Beware, a 1.7" drop in the front on a spring that is softer then oem

Tanabe NF210 G35 SEDAN progressive springs 1.6”/.9” drop on G35 sedan
Spring rates in LBS 297/269
Beware, a large drop on springs that are softer then oem.

Tanabe DF210 G35 SEDAN progressive springs 1.7”/1.5” drop on G35 sedan
Spring rates in LBS 286/280
Beware, a large drop on springs that are softer then oem

Swift 350Z linear springs .8”/.6” drop on 350Z, G35 drop will be higher)
Spring rates in LBS 336/364

Swift 350Z Spec-R progressive springs 1.2"/1"
Spring rates in LBS intial/final Front: 291/392 Rear: 280/448

Swift G35 coupe linear springs 1”/.6” drop on G coupe, G35 sedan drop will be higher)
Spring rates in LBS 280/314 (softer then oem)
Beware, spring rates are softer then oem.

Nismo T2 350Z Linear springs 1”/1” drop on 350Z
DO NOT RUN THESE WITH OEM SHOCKS OF ANY KIND! TCKline DA's were specifically designed for these springs, however I'd pony up for AST4100's or Anze Engineering Penskes
Listed for information ONLY!
Spring rates in LBS 690/690

Vogtland 350z progressive springs 1”/1” drop on 350Z G35 drop will be higher
Spring rates in LBS initial/final front 257/354 initial/final rear 285/422

Kg/mm springs 350Z
DR21 super sport 15mm drop
Spring rates in lbs initial/final front 246/398 initial/final rear 252/409

Kg/mm springs 350Z
DRacing 30mm drop
Spring rates in LBS initial/final front 252/454 initial/final 252/482 rear

Espelir G35 coupe progressive springs .4"/.4" drop
Spring rates 409/515 (rear rate IMO is too high for all oem shocks, Z or G)

Espelir 350Z progressive springs .4"/.4" drop (G35 drops higher)
Spring rates 386/515 (rear rate IMO is too high for all oem shocks, Z or G)

H&R sport springs G35 coupe (progressive springs)
1.1"/1" drop
no spring rate info H&R refuses to give it out, something that is critical to making a informed buying decision, buyer beware)

H&R sport springs G35 sedan (progressive springs)
1.3"/1.2"
no spring rate info H&R refuses to give it out, something that is critical to making a informed buying decision, buyer beware

H&R sport progressive springs 350Z 1.3”/1” drop
Spring rates in LBS 370/400 (peak rates only, softer initial rates are unknown)

Skunk2 350Z progressive springs 1.3”/1”
Spring rate in LBS 238/381 237/395

Skunk2 G35 coupe
Same specs as 350Z, which is strange because normally G35 spec springs have different spring rates and generally a slightly different drop