Torque convertor lockup kits

Looked at them from Wholesale automatics But decided just to drive in 4th all the time. Towed a 25 ft 2900kg van and got average of 17.5L per 100km so was quite happy.
Never towed in 5th as the box kept hunting up and down at the look of a slope .
Best torque revs was 2350 which was 90kph in 4th
Consumption wasnt any worse than the small distance I did in 5th and engine actually ran cooler as was lugging at that speed in top gear.

To add to this I had an oil temp on the tranny and it usually reamined around the 75deg mark except on hills Highest it ever got was 110 on a steep hill south of Adelaide Was down into 2nd near the top going over that. EGT was up over 500 as well as it was a hot day as well.

Run a torque converter lockup in my 5 speed Prado, don't use it as much as I thought I would but it is good on hills for holding in gear but it's best use is dropping the Tranny Temp which it does almost immediately. I can be in 3rd on a hill and the temperature will be at 103 C, engage the lockup and it drops down to 86 C in a few seconds.

Thanks for your help I will put one in and see the results .
GG47WA.

Save your money....tow in 4th and fuel consumption will be good, easier on transmission and more responsive. 5th should not be used for towing anything with a bit of weight in it...