what's the correct fluid for the ba10/5

[Frankensteinsmj]

hello all again. I'm changing my fluids and from the chiltons manual it looks like I have a pukegoat tranny. It states 75-90 gear oil. when I pulled the plug at the bottom rear/not the side of the tranny it was real thin, didn't drain out like 90w lube and was a grey/silver color. So does anyone know what it takes?

Frank C

[mjeff87]

Chilton's is correct. 75-90wt is the right fluid....sounds like yours hasn't been changed in quite awhile :) New fluid should perk it up quite a bit.

Jeff

[Frankensteinsmj]

Are the guys at NAPA wrong? They told me that pure mineral gear lube 90W is the same as the AP type gear lube 90W. I buy a gallon of it for $8 and chanage and put it in. I try it out and It makes all kinds of noises. So I dumped it. I'm gonna refill it again with the AP type to see what's up. I went to another auto parts store and they tell me its used in tractors. :roll: I would like to know so I can go there and tell them they don't know there gear lubes and tell them to give me a refund or another jug of AP lube.

[ROADLESS]

I recommend using Redline MT-90 fluid. Its a synthetic 75W90 fluid. A little pricey at $8/quart but has worked very well for our XJ/MJ's.

[Eagle]

Are the guys at NAPA wrong? They told me that pure mineral gear lube 90W is the same as the AP type gear lube 90W. I buy a gallon of it for $8 and chanage and put it in. I try it out and It makes all kinds of noises. So I dumped it. I'm gonna refill it again with the AP type to see what's up. I went to another auto parts store and they tell me its used in tractors. :roll: I would like to know so I can go there and tell them they don't know there gear lubes and tell them to give me a refund or another jug of AP lube.

They goofed. Gear oil has extreme pressure additives. Mineral oil does not.