how much extra clearance will i get?

[nero161]

how much extra clearance will i get fitting the following..........
Calmini 3.5" Suspension System and also 31.10.50R15 Grizzly Claws.  also what will happen to my speedo and gearing.

was thinking of getting a disco but our sj is just too good to get rid of. just need a bit more height so as not to get stuck.

have lookd at spring over axle but not too keen

[V8MoneyPit]

I was looking at that kit but it seems there are none in the country and they are at least 6 weeks away (as of a couple of weeks ago).

I ended up with KAP 3" springs and ProComp dampers. But I'm only using 235/75x15 tyres. There looks like a lot of cutting to be done in the front arches even with these.

Your speedo reading change will be directly proportional to the tyre diameter change. My std tyres were approx. 27" so you will see a change of 15%. i.e. 50mph on your speedo would then actually be 57.5mph.

[Damon]

The kit photo'd has a shackle reversal kit included.  With the lift springs the 31' tyres will fit.  There may be some slight rubbing but they will fit. :)

You will need a 410 transfer box to fit 31" tyres on a 413/Sammy

31" tyres on a 413/Sammy fitted with a 410 transfer box will bring the gearing almost back to stock.

You may find this handy http://www.miata.net/garage/tirecalc.html

[Paul.K/LuckyTrucker]

Hi there, yes I would aggree spring over axle not good if you are using it on the road. The steering becomes just too weird, and the diffs which are the lowest part of the car are still at the same height.
Best of luck.

[V8MoneyPit]

The kit photo'd has a shackle reversal kit included.  With the lift springs the 31' tyres will fit.  There may be some slight rubbing but they will fit. :)

I am hoping to get on with fitting the suspension tomorrow and I'll see what tyre issues I get. I offered up one front onto the car as standard and it fouled *everywhere*!! And mine are only 30" tyres.

Anyway, I'll try to remember to get before and after pics  :D