31” tyres, 2” lift, standard bumpers?

wrote:

Hi all, 

I’m relatively new here so hello!

I have stock Jimny currently running standard suspension with 215/75/15 Toyo AT’s. These are great tyres but I’d quite like a little more ground clearance and more mud plugging capabilities. I don’t want anything more than a 2” lift as I do daily the car for around 10 miles and I cannot be bothered faffing around changing brake hoses and stuff. I don’t mind doing a little bumper trimming within reason. What do you think is the max size tyres I can put on? I’m currently looking at either 235/75/15 which would give 1.2” lift which I’m not sure is quite enough or 31/10.5/15 which would give 3.3” lift.

wrote:

Then I stand by my earlier comment that you will cook the transmission fluid. The bigger tyres will cause the torque converter to be in a state of slip for extended periods which will over heat and denature the fluid. Adding additional coolers will only mask the problem, a new set of transfer gears over comes it. There's also the issue of stress as applied to both the internal parts of the axles and also the outer tubes themselves. You can expect to be changing wheel bearings and kingpin bearings as a regular service item and while the automatic is gentler on the CV joints it's likely they will have a much reduced service life too, now you can get bigger stronger CV joints but they are multiple times the cost of stock ones so it becomes a question of value. Then there is the issue of the axle tube bending or cracking the welds which leads to trussing the axles. These are all problems that go away with the application of money of course. Also you can expect to need the angle grinder to interact with the front chassis body mount to retain some degree of steering especially when the wheel is compressed fully, again all perfectly doable but not necessarily a weekends work. All that said though a Jimny on 31s is quite a capable thing when done properly. Especially if you add axle lockers.

 

wrote:

It will improve the clearance angles for climbing about on stuff so a lift isn't without merit, it will also be replacing worn standard suspension with new so the ride quality will improve assuming you get a good reputable brand of lift. But unfortunately it will not alter the clearance under the diffs so ruts are still going to need thought. Many people have but but I'm not one of them.