[M2C AW]

I think some people are confusing the thrust arm bushings with control arm bushings. In any event, I Installed the fall-line thrust arm mono-balls. Noticeably improved braking stability and improved steering feel. No noticeable increase in harshness or noise. I recommend Using the appropriate bush removal / install tool (CTA 7880) to prevent damage to new bearings.

[ebisu8]

Originally Posted by M2MGM

I think some people are confusing the thrust arm bushings with control arm bushings.

Agreed that's why I mentioned it in my previous post.

[McLaren720s]

Originally Posted by M2MGM

I think some people are confusing the thrust arm bushings with control arm bushings. In any event, I Installed the fall-line thrust arm mono-balls. Noticeably improved braking stability and improved steering feel. No noticeable increase in harshness or noise. I recommend Using the appropriate bush removal / install tool (CTA 7880) to prevent damage to new bearings.

This is what Turner recommended, which is indeed the thrust arm monoball bushings:

https://www.turnermotorsport.com/p-3...oball-upgrade/

[M Fifty]

Originally Posted by M2MGM

I think some people are confusing the thrust arm bushings with control arm bushings. In any event, I Installed the fall-line thrust arm mono-balls. Noticeably improved braking stability and improved steering feel. No noticeable increase in harshness or noise. I recommend Using the appropriate bush removal / install tool (CTA 7880) to prevent damage to new bearings.

Fair point - I did think he was talking about the rear suspension.

BMW don't seem to use the term 'thrust arm' though?

[M2C AW]

Btw..Rogue Engineering has a couple of more street friendly bearing alternatives to the all metal bearing type of bush...for this application.

[mmwwhats]

Originally Posted by M2MGM

I think some people are confusing the thrust arm bushings with control arm bushings. In any event, I Installed the fall-line thrust arm mono-balls.

I'm not sure I know the difference between the two. Am I correct in thinking that the M2 does not have a control arm bushing to replace? If not, can someone explain?

I just purchased the monoballs from Rogue Engineering (https://www.rogueengineering.com/Rog...X-Z4_p_96.html). I haven't had them installed yet, but will leave impressions when I do. Any other mods I should consider having done to improve steering at the time of having these installed?

[SIE_M2]

I would google search front control arm bushes Turnermotor sport. The pictures will show you the difference between the two.
The thrust arm/tension strut arm is curved with a large circular bush; the one you have purchased replaces this.
The LCA is straight with a small circular bush. I haven’t seen any company that makes a bush for this alone but they do make replacements for the whole arm; SPL, turner motor sport etc.
Do you have a M2C or M2?

[mmwwhats]

Originally Posted by SIE_M2

I would google search front control arm bushes Turnermotor sport. The pictures will show you the difference between the two.
The thrust arm/tension strut arm is curved with a large circular bush; the one you have purchased replaces this.
The LCA is straight with a small circular bush. I haven’t seen any company that makes a bush for this alone but they do make replacements for the whole arm; SPL, turner motor sport etc.
Do you have a M2C or M2?

I have an M2C. I didn't find any options from Turner for the M2C (only for the M2). I did find this from SPL (https://www.splparts.com/products/fr...-m2-m3-m4.html). What benefit would adding that bring? Is that something a regular mechanic can install properly or does it require a race shop for proper setup?

[Bee Pee]

Originally Posted by M Fifty

Separately, if you want to fit them, why not go for the BMW items?

https://www.realoem.com/bmw/enUS/sho...diagId=33_2163

£1600+ reasons to try something cheaper first !!


https://www.apmotorsport.co.uk/produ...gt4-front-arms

[SIE_M2]

Originally Posted by Bee Pee

£1600+ reasons to try something cheaper first !!


https://www.apmotorsport.co.uk/produ...gt4-front-arms

Very pricey and they don’t have the head light regulator rod.

[M Fifty]

The headlight regulator rod bolts to the front wishbone though, rather than the tension strut.

[SIE_M2]

Originally Posted by mmwwhats

I have an M2C. I didn't find any options from Turner for the M2C (only for the M2). I did find this from SPL (https://www.splparts.com/products/fr...-m2-m3-m4.html). What benefit would adding that bring? Is that something a regular mechanic can install properly or does it require a race shop for proper setup?

For me the benefits of the SPL were was less than the thrust arm bushes in terms of steering feel/responsiveness.

I have the fall line mono ball bushes and the SPL arms installed. In initially removed the SPL as I incorrectly attributed some excessive noise when driving to them. They are back on now. Regular mechanic can install, the issue for me came with alignment. As an American part my regular alignment didn’t have the correct Allen key/bit for adjustment; imperial vs metric sizes!

[M Fifty]

Originally Posted by Bee Pee

£1600+ reasons to try something cheaper first !!


https://www.apmotorsport.co.uk/produ...gt4-front-arms

That's only if you buy a complete set though BeePee.

Expensive - yes - but both adjustable and fully rebuildable.

So once convinced of the benefit, why not?

[SIE_M2]

Originally Posted by M Fifty

The headlight regulator rod bolts to the front wishbone though, rather than the tension strut.

The left front lower control arm has the headlight regulator rod..is that what you mean by wishbone? I couldn’t see any attachment for it or mention of it the the race parts link from BP.

[Bee Pee]

Originally Posted by M Fifty

That's only if you buy a complete set though BeePee.

Expensive - yes - but both adjustable and fully rebuildable.

So once convinced of the benefit, why not?

M50

AR Perf sell SPL Street LCA and TS/UCA


https://arperformance.co.uk/product-...ion-23/page/4/

Go for it !!

[M Fifty]

Originally Posted by SIE_M2

The left front lower control arm has the headlight regulator rod..is that what you mean by wishbone? I couldn’t see any attachment for it or mention of it the the race parts link from BP.

BeePee's link shows a pair of front wishbones (the shorter ones), and a pair of tension struts (longer, with bigger fittings on the other end to the balljoints) - hence the complete set.

If just replacing the tension struts (BMW sell each component of the items in the picture separately), the mounting for the headlight adjuster isn't affected.

The naming convention I'm using is from RealOEM.com.

https://www.realoem.com/bmw/enUS/sho...diagId=31_1123

To show what I mean about each component in BeePee's link being separately available:

https://www.realoem.com/bmw/enUS/sho...diagId=31_1437

[SIE_M2]

Originally Posted by M Fifty

BeePee's link shows a pair of front wishbones (the shorter ones), and a pair of tension struts (longer, with bigger fittings on the other end to the balljoints) - hence the complete set.

If just replacing the tension struts (BMW sell each component of the items in the picture separately), the mounting for the headlight adjuster isn't affected.

The naming convention I'm using is from RealOEM.com.

https://www.realoem.com/bmw/enUS/sho...diagId=31_1123

To show what I mean about each component in BeePee's link being separately available:

https://www.realoem.com/bmw/enUS/sho...diagId=31_1437

I got you. I didn’t realise they sold the kit separately. I would have definitely got the tension struts to run with my SPL street LCA.

[Big Fabri]

I put this in the car. Absolutely a difference between before and after.

[M Fifty]

Sealed nicely too. What's the centre section made of?

[mmwwhats]

On the issue of confusing the FCAB and the FTAB, this product looks like it's what other companies are calling an FTAB, but they're calling it an FCAB. What am I missing? Or can this be installed along w the FTAB monoballs I bought from Rogue... bc they're hella cheaper.

https://www.millway.se/front-control...4-f82-f83.html

[Bee Pee]

Originally Posted by mmwwhats

On the issue of confusing the FCAB and the FTAB, this product looks like it's what other companies are calling an FTAB, but they're calling it an FCAB. What am I missing? Or can this be installed along w the FTAB monoballs I bought from Rogue... bc they're hella cheaper.

https://www.millway.se/front-control...4-f82-f83.html

Millway monoball link is same as Rogue monoball you have already.

Rogue mball (same similar as TMS/EAS/GAS mball) gets good reviews so you've chosen wisely ✅

[Big Fabri]

Originally Posted by M Fifty

Sealed nicely too. What's the centre section made of?

stainless steel