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S13RR4
Joined: Sat Aug 22, 2009 11:30 pm Posts: 1072 Location: Sunshine Coast
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 Posted: Tue Jan 04, 2011 4:46 am |
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I have just done a Half RUF on my sierra (WT).
Now the rear is lifted up nicely, but the front, although lifted is not the same height as the rear. There are a few things to consider.
The car has no panels other than tub and front clip and engine, so there is no weight in the back which will make it higher.
I have used 30mm longer shackles on the front.
I have redrilled the fixed end back ~20mm to reduce the amount the diff moved.
I was talking to my brother about it and he thinks the load bearing leaf is facing the wrong way (see pic) despite this being the only design I have seen on standard sierra rears.
Can anyone shed some light on the load bearing leaf in the picture or the setup in general.
Joe
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ajsr
az supporter
Joined: Sun Dec 28, 2008 10:30 pm Posts: 3712 Location: melb
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Posted: Tue Jan 04, 2011 4:51 am |
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slightly shorter shackle will lift it alittle.
opps sorry brain switched off I meant longer shackle will lift it a little 
Last edited by ajsr on Tue Jan 04, 2011 7:59 am, edited 1 time in total.
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mika
Joined: Mon Aug 03, 2009 11:30 pm Posts: 351
Vehicle: Sierra
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Posted: Tue Jan 04, 2011 4:53 am |
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i just pulled the load bearing leaf out of the rear springs on my sierra and they were also facing down as in your picture. Personally i'd remove them as they look like good anchors when driving ruts.
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tanshi
az supporter
Joined: Tue Jan 09, 2007 10:30 pm Posts: 7717 Location: Brisbane
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Posted: Tue Jan 04, 2011 4:55 am |
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yeah looks bent. just hawl the load leaves out, they arent needed in the front
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S13RR4
Joined: Sat Aug 22, 2009 11:30 pm Posts: 1072 Location: Sunshine Coast
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Posted: Tue Jan 04, 2011 5:29 am |
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tanshi wrote: yeah looks bent. just hawl the load leaves out, they arent needed in the front
What about the weight of the engine?
Also will removing the load leaf raise or lower the car?
The load leaf is bent the other way to the other leaves.
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S13RR4
Joined: Sat Aug 22, 2009 11:30 pm Posts: 1072 Location: Sunshine Coast
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Posted: Tue Jan 04, 2011 5:30 am |
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ajsr wrote: slightly shorter shackle will lift it alittle.
So chucking the standard shackles back in will lift it up a bit more?
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tanshi
az supporter
Joined: Tue Jan 09, 2007 10:30 pm Posts: 7717 Location: Brisbane
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Posted: Tue Jan 04, 2011 5:34 am |
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that load leaf is doing nothing. taking it out will have no effect on the height of the car.
it will only come into play when the other springs compress down far enough to touch it.
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tanshi
az supporter
Joined: Tue Jan 09, 2007 10:30 pm Posts: 7717 Location: Brisbane
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Posted: Tue Jan 04, 2011 5:36 am |
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S13RR4 wrote: ajsr wrote: slightly shorter shackle will lift it alittle. So chucking the standard shackles back in will lift it up a bit more? i think you will find the shorter shackles will not hold up the end of the springs and they will end up pointing out straight in front.
i would be surprised if when you put the weight of the motor in it doesnt do this any way.
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S13RR4
Joined: Sat Aug 22, 2009 11:30 pm Posts: 1072 Location: Sunshine Coast
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Posted: Tue Jan 04, 2011 5:39 am |
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tanshi wrote: S13RR4 wrote: ajsr wrote: slightly shorter shackle will lift it alittle. So chucking the standard shackles back in will lift it up a bit more? i think you will find the shorter shackles will not hold up the end of the springs and they will end up pointing out straight in front. i would be surprised if when you put the weight of the motor in it doesnt do this any way. I thought longer would be better but didn't know for sure.
The motor is still in at the moment.
This is the current shackle angle...
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tanshi
az supporter
Joined: Tue Jan 09, 2007 10:30 pm Posts: 7717 Location: Brisbane
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Posted: Tue Jan 04, 2011 6:28 am |
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yeah thats not a good shackle angle. the first bump you hit the shackle will stretch out straight and may not come back down.
longer shackles will "fix" it a bit
but realistically you need to do more moving of hangers.
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BlueSuzy
az supporter
Joined: Sun May 04, 2008 11:30 pm Posts: 9716 Location: NSW
Vehicle: SJ51 LWB, SJ70 SWB
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Posted: Tue Jan 04, 2011 9:17 pm |
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Longer shackles.
Longer full length second leaf. That main leaf is going to bend where the second leaf ends.
Piss off that load leaf and put a normal leaf under there. 3/4 size of the 3rd leaf, so the pack is gradually reduced.
_________________ BlueSuzy wrote: I'm over the G16b's.
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tanshi
az supporter
Joined: Tue Jan 09, 2007 10:30 pm Posts: 7717 Location: Brisbane
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Posted: Tue Jan 04, 2011 9:53 pm |
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bear in mind that extended shackles are.
Illegal
will play around with your caster angles and could give you death wobbles
will change your approach angle.
this is the way i did my ruf first time around and i have now learned the error of my ways.
full ruf is the only way to go.
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neofitou
Joined: Wed Mar 24, 2010 10:30 pm Posts: 1088 Location: Melbourne
Vehicle: 00 Jimny, 63 Haffy
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Posted: Tue Jan 04, 2011 10:19 pm |
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I also vote take out the load leaf add longer normal leaf, but reset them all much higher too, will add your height in, and shorten them eye to eye. use a pipe bender if you have it but if not just wedge them in somehting and stand on them. b4t used a car stand when I was at his place, I have a pipe bender. As you arent re-tempering them they will sag again so go a little over.
I know one car that has rear springs up front without even redrilling doing this.
Full ruf is better.
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