80 series Auto box temperatures
hello all,
On a recent trip to the Gilf & Karkur tahl I suffered some temperature problems with my auto box (A442F).
This only happened in very extreme situations on long slogs through soft sand, generally the ambient air temperatures were in excess of 40c, and often any breeze was from behind.
I wasnt travelling fast enough to get lock up in top gear.
As the ATF temperature rose, the easiest way of dropping it again was to drive in low box for a while, this dropped the atf temp quite quickly as I assume the box locked up and the fluid cooled, but it was a bit of a pain doing this regularly.
The fluid was new, mesh filter clear and additional coolers are fitted, I think it was just the combination of long stretches of soft sand and high air temperatures, in other words, pretty extreme conditions.
I have been looking at the wholesale automatics 3rd & 4th gear lock up kit, has any body any experience of this or fitted one, (costs??) any info greatly appreciated so I can get things sorted before my next trip.
Am I right in thinking that this will overcome the problem by locking the box up in 3rd, and therefore reducing slippage?
The car is a '94 landcruiser 80 VX diesel with A442F auto box
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