Timing belt kits and advice?

Anyone recommend a specific timing belt kit they really liked? Coming up on that 90,000 mile point

 

https://www.tacomaworld.com/threads/best-timing-belt-kit.356341/

 

https://www.ebay.com/itm/190521450224

 

http://www.ebay.com/itm/180729034728?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

 

Aircabinman you can`t go wrong !!

There at one time was two kits one branded Toyota parts the other the same parts from the OEM vendors

 

my 98 taco has 250K, 150K since belt replacement. I'm thinking of just waiting for the belt to fail, no interference, no harm. I've seen these go 300K. on original belt, have seen them fail at 80K.

 

I have never been able to get a good answer just what is the cause of the failure .

simple to pull the top cover off and inspect the belt. A dry rotted cracked belt should be easy to see

Is it just that the belt stretches so far the tensionor is unable to keep it tight any longer and like any loose belt it just fly`s off

 

I had one fail on an old Tercel. Several consecutive teeth broke off the belt, and it was stopped with those missing teeth around the crank gear. I'm not sure if they all sheared off at once, or if some teeth were missing for a while and the extra stress on the adjacent ones eventually broke them off.