PORSCHE TRAILING ARMS

On my quest to find some rear porsche stub axles, a friend has given me some porsche aluminum trailing arms with discs !
So do I strip them to get the stub axles, or should I use the whole trailing arm ?

Is this easy to do ?
Can you fit T3 drums instead of using the disks?

Are they strong, they look it ?

Any advice would be good !

Its to be used on my buggy with the Kombi box :thumb

Do you have any pics. If they are simmilar to vw ones I would try to modify them to fit and then polish them they would look awsome. Has he got anymore😀

they will fit, just need to play around with the spring plates !

The upper shock mount will be mounted to the roll cage, so not fussed about that. The bump stops may need some work ! They are about 75mm in width over the standard arms, but I'm having wheels made so I'm not fussed about this.

The only hassle is that I don't want to use the disc brakes due to the cost ! I would then also have to customise the front brakes to match, to much $$

This is the dilema.

Hi Craig

I just looked up my Porsche parts system.

The 944 with steel arms used bug wheel bearings and the shaft was a direct replacement for a bug shaft.

There was 2 alloy 944 arms >86 & 87 >. The alloy 944 arms are very strong but there is no weight loss, they will also give you a very wide rear track.

The alloy arm has no provision for mounting the VW backing plate if you want to retain drums.

Best to keep looking or get an engineer weld on some kombi flanges to bug axles.

I ended up with 2 spare sets a few years ago.

1302Steve

Thanks steve I was hoping you would post :thumb
I don't mind about the weight, I'm really just after the strength.

So does this mean the stub axles in the aluminum arms are different to the steel arms ?

If I have to run discs,what would you suggest for calipers and the front.

well I can use the ally ones, but the stub axles are different to the ones you fit to beetle trailing arms🙁
If I find the steel trailing arms (which I have 😀) then the stub axles are the same as beetle, just has a larger CV flange. The steel trailing arms look identical to the IRS beetle/T3/superbug arm from the outside but has internal strengthening. It also comes with the porsche discs or drums. The backing plates off a beetle/T3 will fit.

As much as I love the aluminum arms, the steel arm option would be better for future spare parts etc as more beetle parts are interchangeable with them ie bearings, stub axle, brakes.

So I get stronger CV's and better CV angles using the 924 stuff (no need to modify) Stronger trailing arms but look the same (no need to strengthen) and the option of factory fitted disc brakes ! Cool :thumb

So does that meen you will be selling the ally ones realy cheap😀😀😀

maybe, but if your interested then I should still be :P so no.......................maybe.............................no......................................will think about it ! but 555bug has first option 😀 for his help !

so Craig what are you after?? as I mentioned I'm always after bits and I guess they would match my spring plates...hmmmmm u2u me if you like.

Steve this is for my BEACH BUGGY !!!! To be registered for the road, built for offroad use.

The hill climb car I will never change !

555 bug, I'm after complete steel trailing arms off a porsche 924 ! I think !

Sorry, I have been away and have not been through all the old posts, you want 944 not 924 arms

I thought the aluminum ones I had were 944 and the steel ones 924 and early 944:jesus

Umm, Craig, take this with a grain of salt cause I'm only half serious......... Are these just for the wank factor ? or is your buggy heavy enough to need stronger rear trailing arms ?

Just curious, if you arent interested for the brakes, why bother ?

Like I said, please dont take offence, just dicussing and not trying to get personal.

🙂

i believe that the 924 turbo has an identical set up to the 82~86 944 ie single piston calipers, steel arms. In 86 they switched to twin piston calipers on steel arms, I believe that the alloy arms are from a 968 (late model 944) or perhaps from a 928 (v8 hmm).

83-85 944 trailing arm



and stub



Don't know if they help. Brad had aluminium 944 gear floating around for a while. He might of even stolen the stubs. I thought the stubs looked about right, they just had ABS teeth around the flange. But I didn't look very closely.

Doug Sweetman wrote:Umm, Craig, take this with a grain of salt cause I'm only half serious......... Are these just for the wank factor ? or is your buggy heavy enough to need stronger rear trailing arms ?

Just curious, if you arent interested for the brakes, why bother ?

Like I said, please dont take offence, just dicussing and not trying to get personal.

🙂

The buggy needs to be reliable, strong, functional offroad, and easy to replace parts in the future. I want to use the minimal amount of engineered/custom parts as possible.
Therefore the Kombi gearbox was chosen (good diff ratio and strength), this obviously needs to use Kombi CV's (using porsche,better angles) the stub axles then need the larger flange (porsche fits without mods), and when I started looking for the Stub axles I found I could get the whole arm (including disc) for the same price ! So I starting thinking.....:jesus....... why pull the stub axle out of the arm, when I could just use the whole arm !!! The reason I wanted to use the drums on the rear was to save the hassle of having to replace the front etc etc. and finding calipers for the rear .
The strength factor of the arm was an added benefit, but I feel that when the buggy is fully loaded for camping/touring it will be heavier than a beetle .

Its not a wank factor using the steel arms, as from the outside they look the same as Superbug trailing arms.:thumb

This buggy needs to be able to go all the places my Pajero went, without bending cracking or breaking anything. So this is why I'm going this way 😀

I will probably use the discs with a brake bias control 😎

ok craigie paigie

ya, that makes sense. Thought you were using the alloy arms.

Makes sens - I would have done the same thing - get the arms free with the stub axles 🙂

I also thought your buggy was a hill climb / on road buggy, didnt realise it wass off road.

Seeing as its off road, can you not make use of the extra 75mm of track that the alloy arms give you ? ie wider at rear, more stable etc etc ?

I'm sure Wes will let me know if that would be a benefit.

Yeah, go the bias control, that way if you want killer brakes in the future, you only have to upgrade the front, not both !!

:thumb my 76 beetle is my hillclimb car, the buggy is my midlife crisis car😀

I may use the alloy arms, just concerned about the modification etc to the spring plates etc.
If I damage a steel arm, at least I could replace it with a beetle one to keep me going ! If I damage an alloy arm, say in Kakadu, I doubt whether I could find a porsche one in a hurry🙁

the wider track would be good, as I could then use kombi axles and the Cv angles would be less for the same height . :thumb

Ahhhhhhhhhhhhhh the joys of custom buggies !

Craig if you do decide to use the alloy arms and are chasing some spring plates u2u me as I think I can get you some for realistic $$

Hi

Just a note about 944 handbrakes, they will hold you on a hill but thats about it, they dont really make much difference if you pull them on at speed, if you want steering brakes you would need to go hydraulic.

1302Steve

thanks 555bug:thumb

Thanks Steve, the only thing is I don't think hydraulic handbrakes are legal🙁

craig, the brake bias adjusters are about $150 from the big race parts shop whose name i can't remember after all these beers. ( 61 to 100 % front)(i think)

h.

thanks whatnow, I already have a spare bias control :thumb And ultimate brake and clutch in Hornsby provide me with all my hardware.

I was playing with the aluminum arms today and decided that there is to many mods to do. Internal hand brake,sourcing calipers, modifing spring plates, changing bump stops etc etc. Defeats the purpose of being easy to replace parts if/when I do damage ! For what I see as minimal gains.

So now I need to buy some steel 924/944 arms 😀

i'll ask a mate if he's looking to offload his as they have been sitting for a while 🙂

Thanks:thumb