| [ Total Views: 1299 | Total Replies: 11 | Thread Id: 91529 ] |
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 SebastienPeek
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| posted on July 11th, 2011 at 10:42 PM |
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FAQ: Does my beetle have an IRS backend?
Hey all!
I'm currently trying to determine whether or not my 1973 L Bug has an IRS rear end? How does one determine whether or not this is the case?
I'm curious as to whether or not this has been asked elsewhere and I have just overlooked it by mistake. My apologies if this is the case.
I've seen all this talk about IRS and I still don't really understand what all the hoopla is about. Obviously it means Independent Rear Suspension,
but what benefits does it have over the normal rear suspension? What is the normal rear suspension?
Thanks in advance,
Seb!
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on July 11th, 2011 at 10:45 PM |
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Yes it does.
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 barls
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| posted on July 11th, 2011 at 10:46 PM |
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this is one of the misnomers in the vw world. all bugs have irs, its just what form they have
a better way to describe them is ether swing axle or double jointed.
being a 73L bug it should have double jointed so long as it is actually a super not just a 1300 with a different engine lid on it.
the easy way to check is if you look under the rear and see id it has a straight axle each side or one with a cv joint at ether end.
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SebastienPeek
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| posted on July 11th, 2011 at 10:49 PM |
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From what I can determine mine is a double jointed type of IRS.
As a couple of weeks ago now, the bolts holding the CV joint in place on the RHS cracked and exploded.
Does this make adjusting the ride height of the rear easier or does it make it harder?
I'm only asking this as currently she sags a huge amount at the rear and may need to lift her up a little...
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on July 11th, 2011 at 10:51 PM |
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About the same IMO........its about a 2-3 hour job all up.
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SebastienPeek
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| posted on July 11th, 2011 at 10:53 PM |
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Alright, thanks Craig, you have made my plans for next Sunday more exciting that is for sure!
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on July 11th, 2011 at 11:00 PM |
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Hehe.....allow all day if you're not mechanical !!
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SebastienPeek
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| posted on July 11th, 2011 at 11:07 PM |
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Trust me, already have!
The aim is to get a lot done in the next couple of days to get ready for such things 
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68AutoBug
A.k.a.: Lee Noonan
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| posted on July 11th, 2011 at 11:22 PM |
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| Quote: | Originally
posted by SebastienPeek
Hey all!
I'm currently trying to determine whether or not my 1973 L Bug has an IRS rear end? How does one determine whether or not this is the case?
I'm curious as to whether or not this has been asked elsewhere and I have just overlooked it by mistake. My apologies if this is the case.
I've seen all this talk about IRS and I still don't really understand what all the hoopla is about. Obviously it means Independent Rear Suspension,
but what benefits does it have over the normal rear suspension? What is the normal rear suspension?
Thanks in advance,
Seb!
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Hi Seb
Yes, they are ALL IRS... independent rear suspension..
but all the SUPERS had the axles with two constant velocity joints either side...
and the rear wheels did NOT go into Positive camber like the early non cv joint rear ends..
I haven't heard of the CV joint bolts snapping like that...
but the bolts are sold by most big VW parts shops in the USA
so, many must need replacing...
maybe they were over tightened at some time??
but adjusting the rear torsion bars....
some I personally haven't done as yet...
I would really start on Saturday....
I hope You have read the article on :-
http://www.vw-resource.com/
IRS adjustment
its interesting... lol [also see sagging rear end...]
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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SebastienPeek
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| posted on July 11th, 2011 at 11:33 PM |
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Hey Lee!
Thanks for all that information, that site is an awesome read that is for sure!
Actually, they said that the bolts had become really loose, and a strain on them caused four of them to explode/crack.
Was causing no drive and had to get Zelda towed to the mechanics down further south.
But so very glad to have her back and running nicely!
Yeah, I'm still thinking about whether or not I should do it. Maybe just some new shocks will set her back up a little higher.
She probably still has stock shocks in her!
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helbus
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| posted on July 11th, 2011 at 11:35 PM |
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Shock absorbers don't set ride height.
Have you thought about lowering the front to match the rear?
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SebastienPeek
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| posted on July 11th, 2011 at 11:45 PM |
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The issue is helbus, I don't want to have her lower.
Currently the exhaust hangs way too low and scrapes everywhere (it is a custom job due to the stupid torana backend).
I may not even raise the rear end, just thought that the IRS question should be raised somewhere...
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