View Full Version : Suspension advice
pro4wd
17-01-2008, 04:54 PM
Hi all, i know this topic has probably been discussed heaps, I have a GQ LWB petrol 4.2 dual fuel . My question is what height above standard, is it safe to raise the vehicle without getting in to the major modifications eg 2" or so on. I only want to change springs and shocks but if there are other minor changes i need to do i will do it. Also how do i know if i have standard height springs in it now ? Is there a measurement i can do to give me some idea? I would like my rear springs slighty heavier and a little higher for towing purposes aswell.
Thanks in advance
GQMac
17-01-2008, 05:02 PM
What type of offroading are you using your truck for? If to the beach, then 2inch lift is enough.
pro4wd
17-01-2008, 05:32 PM
Beach is planned and beginner/intermediate 4wdriving for the time being. My point is at this stage i want to raise to truck with minimal changes ( eg springs and shocks ) to the vehicle as handling/driving of the the vehicle is important as it must be able to safely tow my drag car around too.
Mavman
17-01-2008, 09:36 PM
Most insurance companies don't like it if you raise more than 2 inch. Also a f/e castor correction kit would be needed for 3 inch plus. There is a measurement between the bump stops to check your current height. Run a search as I saw it here not long ago. Your old suspension is probably sacked out anyway and if you put new stuff in you can determine the springs you want by the loads being carried. You can always go to polyairs or coilrites in the rear for towing if you don't want the springs too stiff for normal use.
pro4wd
18-01-2008, 01:31 PM
Thanks for your response guys, i thought more people would have knowledge on this . To be safe by the sounds of it 2 inch lift in spring and shocks would be max without any changes.
oondy
18-01-2008, 01:59 PM
PM Sent mate
Can get away with no caster correction with 2" lift but you realise how much better it is with the correct caster. Coils and shocks are an easy way to get started so to speak - once you start lifting you just keep wanting it just a bees pecker taller.
cheers
OONDY
OldMav
18-01-2008, 03:23 PM
Just a note to add to oondy post.
Our patrols drive very well with 3 to 3.5 deg caster if you are lucky and your std height patrol has 3.5 deg then 2 in lift will change your caster to very close to 3 deg which is fine BUT in reality most patrols have only 2 to 2.5 deg of caster which is hardly enough to start with and leads to the start of many problems like the death wobble, or wanders or pulling to the right when sh*t starts to wear, so add 2 inch lift and now you have closer to 1.5 to 2 deg caster not good. So with this in mind you save nothing and cause yourself a lot of pain down the track just because you want to save a few dollars now. Take oondy's advice and heed it have your front end checked first if it isn't min 3 deg, have it corrected with your 2 inch lift.
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