Front brakes improvement

Hi,

I recently modified my Jimny to run 33"s and found that the breaking with those tires is really deficient. I have seen from this forum that the Gran Vitara or sidekick front brakes can be installed in the Jimnys (and therefore being able to use ventilated discs and a 13% larger caliper), however, I couldn't find which specific models should I be looking for.

In my country we have 2 Sidekick versions, the 2 and the 4 doors. Also for the Gran Vitara, from the 2nd hand seller, there are 4 versions, the one from 1999-2005 and another from 2006-2017 and each also came in 2 and 4 doors versions from what I understood. 

Does anyone has any idea on which one I should be looking for? I would the ones from the BigJimny store, however, which shipping and customs to my country, the cost almost triples.

Another option is waiting for the new 4 doors Jimny, which comes with ventilated brakes from what I understand. Does anyone knows of the caliper is also bigger on the new 4d Jimny? 

What Jimny do you have?

Vented discs won't necessarily provide anymore stopping power, as that will depend on surface area of the disc and pad. Vented discs have greater heat dispersal, so rather than being stronger braking, just means they can handle more heat for longer, such as from a larger heavier vehicle.

Or if he is towing to the max. allowed down a steep hill on a hot day.

Roger

Not really. Unless the vehicle has under specced brakes. Most times they should be designed to cope with the vehicles maximum train weight. Also let’s not forget the unbraked trailer towing limit is low. Anything brakes should make it a non issue. 

It's not under specified brakes that are the problem, but the over specified tyres. When you fit such huge tyres to a Jimny, the standard brakes are being pushed to the limit as the author found out. I would suggest a change to a vented disc with suitable pads would be a good idea. I will leave it to others to advise as to where to get the parts. One last point, the front brakes do most of the braking so I do not see the need to convert the rear to a disc set-up.

Roger

I am using 4 door 93 to 98 Vitara/sidekick calipers and hangers and diesel jimny discs. My car got ABS so the disc center is 107.8 ish. Non ABS is 107 and can use vitara/sidekick discs.

I have no experience with such large wheels on road.

I will Try dieseljimny every thing the next time I order spare brakes.