Shark wrote:The springs i was given are Tough dogs they were apparently installed wrong so i thought they would be worth a reset???
Vanne wrote: forget about reseting the springs, theyll just sagg again.
Go to a wrecker and see if you can pilfer a boot while your there, you might find some raised springs.
The lift looks nice in the silver MK wagon that was linked, but pity about the mangled floor to get to the bolts! Would have been better to drill them out with a hole saw and put a rubber bung back to fill things up neatly.
Depends on what loads you plan to carry. Too heavy springs makes for bad ride and low amounts of flex. The scragged Tough Dogs springs you have could be a heap better than what you are running - jack up the front from the frame rail and compare unladen curves.
If the springs are the right weight for the task, then getting them recurved or reset is not a problem. Springs do wear, they are a moving part. If they are set properly, you don't overload them, then they will eventually sag with usage and kilometres. You can put rock-hard-heavy-duty-don't-flex-never-sag springs in, but if you don't carry heavy loads then you are breaking your tail end (and other things!) and losing flex all for the sake of not putting in new springs when you need them. Let's face it - even truck springs wear out - use the right spring and shock combination for the job.
Not sure about allegedly installed incorrectly - if they are damaged (twisted, kinked, wear spots in sides, etc), then don't use them (risk of breakage), otherwise should not be a problem. They could be scragged (sagged till they bend the wrong way) due to being abused (hit hard, over loaded), but that will only reduce their performance. Also get the hassle of MQ Tilt - car leans to the right as all heavy stuff (transfer, drive shafts, driver???) tends to be down the RHS), so if one pair is taller, put them on the right to compensate.
Have put Ironman 3" lifted springs and shocks into the MQ wagon I had. Ok flex, better than factory ride, sagging front but the rear is still standing tall - probably similar sag to what you are describing. Cost me $400, so not complaining too loudly. Was fairly easy to install and sucked me into trying to do the MK myself.
Previous suspension in the MK was super-soft and flexed like crazy with a cushy ride, but soon sagged down to factory height. Only cost me the effort to swap it into my car (two days worth of swearing as the old suspension had partially seized!). Was a lot better than factory, for sure!
I spent $1500 for a full set of recurved and set to my load requirement (400kg payload) 2" lifted springs with new greasable shackles, all bushes (including the metal ones inside the frame 99% of people don't change!), shockers, all U-bolts and had them installed by Hi Tek suspension in Lilydale. They know their stuff - the ride has been very good, very good flex, maintained ride height and hasn't sagged past the 'breaking in' stage after 12+ months of use for towing, touring and off-roading. It felt expensive at the time, but money well spent.
Incidentally the rear springs are based on factory MQ wagon springs!
Don't bother buying a second hand gearstick boot. They split - it's an MQ feature. The bodge is to get a good quality toweling (no oil or grease, lots of cotton or other natural fibre) type rag and wrap it around the gearstick up under the split boot - will block the noise and heat flow from underneath. I haven't found aftermarket gearstick boots to do anything other than 'look nice'. The original boots can be ordered through Nissan, are under $50 from memory and you won't need another one unless you do something stupid to it. I've changed several for 'good second hand' only to have them split a few months later. The hassle of getting them in is not worth the cost difference; they are a nuisance to change.
I've had 6 MQ/MK's; 4 diesel, 2 petrol; SWB and LWB configurations and done most modifications at some stage, so I can probably tell you the best way to do it and the bodgey way along with the drawbacks you may encounter. Cutting some corners saves cost and effort, others cost you a new axle...