Sway Bar Sizes

[DanGillan]

bumpzilla

[DanGillan]

anyone?

[DanGillan]

what did a 1991 318i four door with an m42 have for sway bar sizes? thanks,
Dan

[kencopperwheat]

i got 90 325i Disc brake Rear conversion so i am guessin it should bolt right up. i was jst wonderin if there was predrill holes for the mounting hardware in the chasis. or i have to drill new ones?

thanx for the info.

Holes are already in the chassis.

[Chris325/325i]

Re: Sway Bar Sizes

I think if you research you'll find that the 87 325/e/es (9/86-9/87) has an oddball one year only rear bar size of 13.5mm.

Yep, I found this out the hard way. Ordered new 12mm bushings for my 87 325, did not bother to check since they are all 12mm (ex the ix and M3). Go to put them in and could not figure out what was wrong until I saw the 13.5 marked on the old bushings.

[ZiMMie]

i got 90 325i Disc brake Rear conversion so i am guessin it should bolt right up. i was jst wonderin if there was predrill holes for the mounting hardware in the chasis. or i have to drill new ones?

thanx for the info.

[kencopperwheat]

anyone with an early 84 318 try upgrading rear sways? is it a bolt on?

Yes, I added the sways from a 325is to my 84 318. The rear bar is definitely bolt on. There are tabs on the trailing arms and chassis for the bar. You just need the bar, links, and hardware. It's not that bad of a job. Put the links on the bar before you bolt the bar in under the car. Then you'll need to put the rear of the car on jackstands, remove one wheel and spring on the same side. Then slide the bar straight in over the diff, orient it correctly and bolt it in to the chassis. Then put the spring back in and wheel back on and then lower the car a bit. Then bolt the links onto the trailing arm tabs and lower the car all the way down. Adding the rear bar to the 318 made a HUGE difference in handling.

[ZiMMie]

anyone with an early 84 318 try upgrading rear sways? is it a bolt on?

[kencopperwheat]

Is it worth the upgrade in my car from the 18mm in front to the 20mm?

[ACS325ic]

Re: Sway Bar Sizes

Stock:

318i(m10): Front: 18mm Rear: none
318is(m42): Front: 20mm Rear: 12mm
318ic(m42): Front: 21mm Rear: 12mm
325e(pre 9/86): Front: 18.5mm Rear: 12mm
325e(9/86): Front: 20mm Rear: 12mm
325i(m20): Front: 20mm Rear: 12mm
325is(m20): Front: 20mm Rear: 12mm
325ic(m20): Front: 21mm Rear: 12mm
325ix(M20): Front: 17mm Rear: 14.5mm
325ix Touring(M20): Front: 18mm Rear: 14.5mm
M3(s14): Front: 19mm Rear: 14.5mm



If you have more info to add, post here and i will update the faq.

Enjoy.

I think if you research you'll find that the 87 325/e/es (9/86-9/87) has an oddball one year only rear bar size of 13.5mm.

[Spaz]

updated :)

[Matto]

What size sways came on the alpina cars?

[nando]

thought I'd add, 325ix touring front bar is 18mm, rear is still 14.5 however.

[M-technik-3]

M-technik anti rool bars F 20mm R 14.5mm

[Spaz]

Re: Sway Bar Sizes

Racing Dynamics (adjustable): Front: 22mm Rear: 19mm

Correction:

What you have listed is currently how the RD bars come (22mm/19mm). A few years ago Racing Dynamics actually offered two different bar sets for the E30. The 22/19 set was for the E30 M3. They offered a non-M E30 specific set with a 22mm front bar and a 16mm rear bar. I am lucky to have one of these sets and I don't there are many around.

HTH,

there u go my man.