33 inch tyres

Saw a post on Facebook with a pretty smart looking jimmy with 33" tyres, cause having seen them I now want them! Just wondering about peoples opinions on going that way. Already got lobster box, HD shafts and 6" lift, my thinking is lower the diff ratios, with a lower ratio would I still be able to maintain 55/ 60 on motorway? I need to actually go out and measure but I reckon the 31" remoulds I have on it were closer to 32 when I put them on.

When we had the BigJim meet last year I was speaking to a bloke who was starting doing Jimmy stuff and reckoned he could do the ratios in standard, can't remember his name and lost the card ages ago, anyone any ideas who he was?

Assuming yours is pre-2005, 2005-onwards manual diffs will lower the gearing by ~10%, which will result in slightly lower gearing than you currently have with 31s.

rexthecat wrote: Saw a post on Facebook with a pretty smart looking jimmy with 33" tyres, cause having seen them I now want them! Just wondering about peoples opinions on going that way. Already got lobster box, HD shafts and 6" lift, my thinking is lower the diff ratios, with a lower ratio would I still be able to maintain 55/ 60 on motorway? I need to actually go out and measure but I reckon the 31" remoulds I have on it were closer to 32 when I put them on.

When we had the BigJim meet last year I was speaking to a bloke who was starting doing Jimmy stuff and reckoned he could do the ratios in standard, can't remember his name and lost the card ages ago, anyone any ideas who he was?

Lift and having room for the tyres is the least thing to worry about. Such big and heavy tyres requires more power to spin and keep clean than 31". So even if you get a higher ratio in the transfer box you may not be able to keep the tyres sufficiently clean. But for a bit of pay n play and looks shouldn't be the big a problem

Also you're HD shafts, if they're with some sort of warranty. It's probably void over 31-32" tyres.

Ta for reply, so after a bit of thinking I'm now thinking maybe going 16" rims 235/85 so not quite32" but....

Should hopefully still be able to spin / clean them with 1.6. Thinking slightly narrower width will dig in more in deep / slippy mud. I know its also technique but find can struggle a bit on really steep muddy rutted climbs, maybe slightly wider 31s tending to not dig in so much. Hopefully get the tyres to do the job I want em too, not just looks....but guess that's part of it too eh.

Didn't mention my 1999 Jim used to be auto so the diffs are slightly lower I think, but I was thinking wouldn't need to change the diff ratios for 235s.

I got HD shafts rear not front, but ARB locker in front, so anyone recommend where to get HD 22 spline shafts / stronger CVs? Also any thoughts on bead lockers? I dropped psi down to 14 in the mud at the weekend but didn't look that aired down to me but was a bit nervous going lower.

Got remoulds on at mo, thinking Baja claws or BFG KM2s any prefs?

Ta

22 splines shafts and CVs are available from RCV performance and from Zanfi. The RCV ones comes with 5 year warranty up to 32" tyres. Zanfi no warranty. I have the RCV shafts and CVs installed. They're plug and play. No need for spacers or other sidegears

For non remoulds I'd go for either Km2 or maxxis trepadors. Or perhaps Silverstone mt117 extreme.

Good call on getting narrower tyres. They are better in probably 90% of off-road situations, especially on a light car like a Jimny. As long as you don't mind the 'pram' look

I'd imagine BFGs will be better in our Great British mud than the Baja Claws. They are also non-directional, so probably better for backing out of trouble.