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Does the front differential use same fluid as the rear diff.?


Yes, unless you have a limited slip rear axle. IIRC when I did mine ('91, but I think it's the same) the manual called for 75-90W gear oil.

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And lastly, I see the fill hole for front diff., but didn't see a drain plug. Is it a hidden 24mm bolt or do I have to remove the diff cover?


The 'drain plug' is the lowest bolt on the differential cover. Take it and the fill plug out and it will drain fine. I recommend the extra few bucks for one of those little hand pumps to refill the axles!

If it's been a while since the fluids were done, you may want to think about doing them anyway, even if they looked OK.

Good luck,

Jay

1991 Trooper - DEAD! 2.8 V6, 5 spd, 4WD, HD clutch, 2.25" exhaust, EPROM Chip, KC/Hella, Aisin hubs, Rancho 9000X's, Panasonic/Infinity/Alpine
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