I had a 2006 Tacoma with the 4.0 V6. The brakes totally sucked, so I changed them to 4 wheel disc.... now it had brakes. I have an aluminum flatbed car trailer that I tow and have had a car on it as large as a Ford Torino with a big block in it. My Tacoma used to pull it just fine all over the western USA. Of course, I had to slow down for hills, but face it, everything does.
It had 260,000 miles on it, and was running great, never any real problems to complain about. So, I went and drove the newer Tacoma in 2018. Went out of the dealer, down the block, made a U-Turn and came back. Sales man asked what was wrong... told him "My 2006 has more power than this, and the brakes on this thing still suck." I had hoped they would have fixed the poor brakes, but they didn't. The 3.5 they have now technically does have more HP, but that is at 6,000 RPM!
I went shopping.... I got a Colorado with the 2.8 Duramax. Plenty of power and does drive stable with a large car and trailer. I figured it was about 6,000 LB I brought back from Clearwater Florida back to Southern California. Averaged 19 MPG, and yes, the brakes are great.
I will say this, my 2006 Tacoma was a better built truck with better quality components in many areas. My bitching about my Colorado is:
At about 6,000 miles I changed the rear diff cover to an aluminum cover to help disperse heat, and add a little capacity. When I trained the factory gear oil, there was water in it!
I noticed that the front tires were wearing and when I put it on a 4 wheel alignment machine the rear axle was 1/8" out of being square with the front axle line. The front end didn't have one setting that was close to correct. It did drive straight, but I sure tore up the front tires. I fixed ll of this and it now drives much better, and I get an average of 0.5 better MPG.
I've listed these other mods with photos in another area on the forum, but I added a Catch Can or a CCV filter for the crankcase vent. There isn't one on it, and the inlet to the turbo had a coating of oil, now it doesn't. (Note, any turbo diesel should have a CCV or catch can because of the higher crankcase pressures in these engines.)
I also installed a bypass oil filter after an oil analysis showed a very high level of ash in the oil.
As a result of the poor wheel alignment issue, the tires only lasted me 33,000 miles.