Improving the cooling on our TJs

if you want to force the lockup earlier, just disable the overdrive. Then the lockup will happen much earlier, in 3rd gear. This is what I do on trails in 4L.

I do that in 2/4Hi and it’s a bad idea to do in 4Low (4:1).

I manipulate the OD switch multiple times a day…knowing exactly when lockup occurs in 3rd and OD (my target rpm for boost determines when I toggle the switch).

BTW, what gearing do you have? I have 4.56 and running 31 inch tires, I still think that 4:88 would do a better job with 31s and 42RLE do to extremely low overdrive ratio.

I’m running 5.38s with 35s. I’ll probably get a Rubicrawler at some point for the 2.72:1

4:1 is great in the rocks but not for other trails I like to do.
 
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