Hi folks
A few months back I got new tyres on my 1990 HZJ80R Landcruiser and wound up with 35" all terrains, as the shop said they couldn't source the 33" ones that I previously had. Yesterday a fellow Cruiser owner asked me if I was worried about the possible diff damage, as he had heard of instances of diffs being damaged and even broken by larger tyres. This is the first I had heard of this, and the shop certainly didn't flag it, although they may have just been interested in upsizing the sale... All they flagged was to be mindful of the difference on the speedo and odo.
All I've been able to find online is a generic article stating this:
"Everything that indirectly attaches to your tyres is put under more stress when you fit bigger tyres. This includes your CV’s, steering box, steering shafts, axles and differentials. Many people will not break components on standard tyres (especially CV’s) but as soon as they go up a few tyre sizes the breakages happen on a regular basis." (Fitting bigger tyres to your 4WD; what should you consider? - https://www.4wdingaustralia.com/4x4/fitting-bigger-tyres-to-your-4wd/)
Has anyone encountered or heard of this issue, or know of any other factors that might make such damage more likely (so that I can avoid or minimise those factors)? I'm pretty keen to not destroy any bits of my truck and well annoyed that the tyre shop didn't know or care to mention it I'm kinda tempted to go to another shop to swap back to 33s, cut the loss and try to sell the 35s if the risk is substantial.
Many thanks for any insight!
A few months back I got new tyres on my 1990 HZJ80R Landcruiser and wound up with 35" all terrains, as the shop said they couldn't source the 33" ones that I previously had. Yesterday a fellow Cruiser owner asked me if I was worried about the possible diff damage, as he had heard of instances of diffs being damaged and even broken by larger tyres. This is the first I had heard of this, and the shop certainly didn't flag it, although they may have just been interested in upsizing the sale... All they flagged was to be mindful of the difference on the speedo and odo.
All I've been able to find online is a generic article stating this:
"Everything that indirectly attaches to your tyres is put under more stress when you fit bigger tyres. This includes your CV’s, steering box, steering shafts, axles and differentials. Many people will not break components on standard tyres (especially CV’s) but as soon as they go up a few tyre sizes the breakages happen on a regular basis." (Fitting bigger tyres to your 4WD; what should you consider? - https://www.4wdingaustralia.com/4x4/fitting-bigger-tyres-to-your-4wd/)
Has anyone encountered or heard of this issue, or know of any other factors that might make such damage more likely (so that I can avoid or minimise those factors)? I'm pretty keen to not destroy any bits of my truck and well annoyed that the tyre shop didn't know or care to mention it I'm kinda tempted to go to another shop to swap back to 33s, cut the loss and try to sell the 35s if the risk is substantial.
Many thanks for any insight!