2wd Differental Oil Type?

[paulmars]

Toy book says 80w-90 or 85w-90 for 0 degree F or below. Straight 90 wt for above 0 degree. Here in central Fl, its never below 40 F and never below 60 when I drive. Typically 75 tp 95 F. However, I cant find straight 90 wt anywhere. All that I can find is 80w-90. Is that ok? Also, its carquest brand. It is API service GL-5 which is what toy calls for. OK to use? This will be my 1st and maybe only diff oil change. I do want this vehicle to last forever.

2003 2.4L 2wd 5 speed std cab

62,000 miles

tks,
pa

 

[tbplus10]

Should be ok for your truck no problem.
I've run Redline 80w-90 in my 99 Tacoma since I changed the diff fluid the first time at 3k miles in 2000, its now at 140k with no issues and showing no wear the last time I tore it down and rebuilt it at 130k. It was rebuilt only because I beat the piss out of it towing car trailers and boats, along with serious off-roading.