Hi
I had a service recently and got my timing belt changed, in my logbook as well as this list the mechanic had (was a poster sized list of when to do the timing belt), it said the TJ 3.5litre was due at 75,000km.
The list also showed the 3litre and all other mitstubishis which had a 100,000km timing belt interval.

Actually on the list most cars were listed at 100,000km and the 3.5litre TJ was the odd one out, which is strange.

Could this be because a lot of people had problems with early failure of the timing belt in the 3.5's ?

You need to change your timing belt every 100,000 km or 5 years. If you have only done 75k but have had it for 5 years without a belt change, do it.

Not sure why yet another thread has been started asking the exact same question but Mits state that the belt is 5 years or 100k. I have seen many posters with wrong info on them over the years and even listing models of Magna which have never existed