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Help me with MK3 rear suspension - Fitting a Rear ARB

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No, it'd be too short then - the bar doesn't just hang down, it hangs back..

canarbex.jpg

I like the way it looks. My car is a little high,being factory height at the rear,though. Not sure how it'd sit 80mm down,like some people are down so low they cant drive over a set of keys.. But as it is,this clears a high kerb and coke can.

B2-ARB-R.jpg

Tractorear.jpg

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Ok on standard height. But i think it would catch on everything if the car was lowered.

Still a great idea, for a track based car especially as you wouldn't have silly lows.

Yeah its worth remembering to a point, though the bar wouldn't be 80mm lower if the body was,due to the way it turns back and upwards as the body goes down. And its higher than the front brace - unless the back's lower than the front that'll always be the case,so its not as much an issue as it seems. Especially as the huge and straight exhaust necessitated the bar hang lower on spacers when the 's' bend in the smaller factory exhausts would surely reduce this.

Remember MK2's look sky high at the back as there's little behind the high bumper. Even at this height it can only be seen from the rear.

cometar.jpg

I'm sure there's a bar available to go across the top without the exhaust hanging lower,i can see it not being for everyone,but i settled on this after looking in only one breakers after about 15mins because it fits mine okay.

For handling its superb,so if this is too low for some then i do recommend the search to find one more fitting for theirs.

I've just thought. :shock:

When i tried to mount it upside down before,that was by the straight middle section,which pulled the bar forward and prevented it from reaching adequately. But if i mounted it upside down as it is,it might go bang-on. The nylon blocks staying,helping the angled inner end of the bar to clear the axle's webbing,whilst the now-raised section of the bar still clearing any exhaust.

I'll make some solid mounts for the bar itself too,reduce the absurd number of bushes down to the pair in the drop links each side. Each bolt needs a bush,but two is just greedy. See if she still likes it a bit stiffer.

I'll give it a try on my next day off.

  • 2 months later...

top lil nugget of info this

  • 4 months later...

this is shit hot i was guna buy a g40 axle with arb, but now I'm guna do this instead :-D

top marks for this

  • 2 months later...

Any pics dude?

Pics or it never happened :p

This is your breadie by the way?

  • 7 months later...

Forgot about this thread, everything i've written is well out of date, wouldn't go back to the Rover ARB now.

I've now got three rear ARB's, and yet they're stashed so subtly you can only see two of them, and that's if you get down on the deck and look at the beam. And they barely affect exhaust clearance. This because they're directly bolted to the beam - no bushes or links - turning the beam into one big torsion spring.

With the 20mm Rover one, the bushes did most of the work, it was stiff but didn't have much give in itself.

Three 14mm ARB's don't equate to one 42mm one. There's more spring at the core with the same amount of metal, the further out the metal is spread radialy, the stiffer the bar (scaffold bars don't twist easily!). So the three 14mm solid ARB's instead make for a progressive spring rate and it's about the same as that of the 6n valver rear beam (welded-in ARB).

These ARB's span the full width of the MK2's cross beam and spread the load all the way around, too. Two are a pair sandwiched, the third not as there's not enough room for a second inside the beam.

  • 2 weeks later...

I've scrapped the previous beam to be on the safe side, not that the 8mm holes were a concern but i had a spare in great condition. These ARB's would've covered two holes, but i knew they were there and i'm petty like that.

I only had to put four holes in this one for the three ARB's (one bolt each end, two ARB's share the same bolts/holes), and the Skoda had holes in it.

Difference there is they used the webbing! On mine i've only used the main beam and left the webbing alone (i'd drilled the webbing on the old beam, was only an 8mm in each side though).

VW put holes in further up for the handbrake cable brackets, doesn't cause an issue once the bolts are clamped up.

The Clio ones use four bolts each! The bar's too short, anyway.

Anyway, yeah, my old beam had six holes in it to mount the Rover ARB. This beam has four holes in it to mount the three Skoda ARB's!

  • 1 year later...

Do you have pictures of this?

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