I solved my engine coolant issues (set the jiggle valve on a new TStat to 6 O'Clock along with a new radiator and cap) and my high transmission temps issue ( trans cooler, drain-n-fills, magnefine) while I still had a fatlip bumper.

After installing a TNF plate bumper, I saw no changes at all. I use an ultragauge to keep track of temps.

Edit -

Prior to the work I was seeing up to 212 engine and (shudder) a max trans temp of 249. Only once (that I know of). Work to fix that began immediately.

Now I see engine temps of 188.6 all day on the freeway and 194ish under max offroad strain in hot ambient temp (4Lo OD off)

The trans temps now are at 155 freeway to 190/200 in the max off road conditions above.

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