Hi guys I am a noob here, and unfortunately come here with my tail between my legs. I had planned for a long time a lift after buying 2x air lockers with 4.88 gears and a set of 10x15 with 35x12.5 M/T claws on them.
I have a 1986 FJ73 MWB and decided that it's years of loyal service are only limited to how much I put in it.
Basically I opted to stay spring under after looking at how involved a SOA was and not guaranteed decent on road results.
I purchased 4 OME leaf packs which I ripped 1 spring out the rear and 2 out the front. I got extended shackles and did a shackle reversal with the fronts built up 50mm approx. to correct castor, spring perches are about 5-7Deg + castor where they bolt to the spring. I rebuilt the diffs and did all the seals and bearings.
I have gone a little bit higher in the front than the rear, but I will address that later.
Basically I have gone up maybe 7-8inches, and have factory steering in it so the steering box link is in at a decent angle.
I took it for a drive with no shocks installed yet in it and had a horrible vibration that shook felt extremely dangerous. It appears the steering has very harsh wobble in it, and I thought it was a combination of harmonics in the undampened springs and the bump steer I created? I do have a RTC steering dampener witted
I have fitted rancho xl9000's and wound them to tight and it feels better but it's by no means fixed.
My 1st question: are 15x10's too big for the truck, the dish is really deep, unknown offset?
My 2nd question do I need to do something to level my steering, if so what is my best option?
Otherwise I am quite happy with the lift and the feel, but if anyone has ever had this happen to them, it's a pretty big downfall. I have 14" travel at each front and 10" in the rear, but would have more if the wheels weren’t hitting the frame.
Many thanks guys love them cruisers!
I have a 1986 FJ73 MWB and decided that it's years of loyal service are only limited to how much I put in it.
Basically I opted to stay spring under after looking at how involved a SOA was and not guaranteed decent on road results.
I purchased 4 OME leaf packs which I ripped 1 spring out the rear and 2 out the front. I got extended shackles and did a shackle reversal with the fronts built up 50mm approx. to correct castor, spring perches are about 5-7Deg + castor where they bolt to the spring. I rebuilt the diffs and did all the seals and bearings.
I have gone a little bit higher in the front than the rear, but I will address that later.
Basically I have gone up maybe 7-8inches, and have factory steering in it so the steering box link is in at a decent angle.
I took it for a drive with no shocks installed yet in it and had a horrible vibration that shook felt extremely dangerous. It appears the steering has very harsh wobble in it, and I thought it was a combination of harmonics in the undampened springs and the bump steer I created? I do have a RTC steering dampener witted
I have fitted rancho xl9000's and wound them to tight and it feels better but it's by no means fixed.
My 1st question: are 15x10's too big for the truck, the dish is really deep, unknown offset?
My 2nd question do I need to do something to level my steering, if so what is my best option?
Otherwise I am quite happy with the lift and the feel, but if anyone has ever had this happen to them, it's a pretty big downfall. I have 14" travel at each front and 10" in the rear, but would have more if the wheels weren’t hitting the frame.
Many thanks guys love them cruisers!
