Heavy Load to Tucson

Walt from Ky

NAXJA Forum User
Location
Tucson, Arizona
Well my dream has come true and I am moving to Tucson, Arizona for a new job in September. It's the same job that I now do for the State of Ky but now it will be for the State of Arizona with a considerable raise. Since I'll only be a days drive from Moab and the San Juans I probably would have taken a pay cut for the job. It's good to be getting out of the allergie and sinus capital of the world for the desert. It might mess up my plans for Moab in October though. I had planned to be there from 10-6 thru 10-12 and have a cabin reserved for that time. However, I don't know how much time I'll be able to take because of just starting a new job. But I'll be there for at least Friday and Saturday and hopefully more time. I'll post more info in this so someone can use the cabin for the days I won't be there. I also have a question about diff lubes and a heavy load. I won't be pulling a trailor to Arizona but my 99 XJ will be really loaded heavy for the drive out in late August, the hottest time of the year. I have changed the lube in my diff's within the last 6 months and have Mobil 1 75W-90 in them now. My question is this, should I change the rear diff to 75W-140 synth as the fsm recomends for heavy towing or will the normal mobil 1 be ok? I have flushed both the trans and radiator recently and just installed an oem aux trans cooler so Im not worried about much else except the diff's. Any feedback would be appreciated. Walt (soon to be from) Tucson.
 
The normal stuff is probably okay, but Tucson is HOT in summer anyway, so having the 75w140 synthetic in there would be a good idea regardless of the load you carry going out.
 
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