What wt gear oil for Diferential of '63 dodge 1ton?

From : Annonymous

Q: i assume 90wt but that cant be found. will 85w90 with additives be ok .

Replies:

From : demon

85w90 is the standard around here. sometimes in the winter ive used 75w90. i assume 90wt but that cant be found. will 85w90 with additives be ok .

From : steve barker

80-90 85-90 90 all the same thing. when someone says ninety weight it is usually just a term for one of the previously listed oils. i dont know that ive ever seen a jug that said just 90 on it. -- steve ========= i assume 90wt but that cant be found. will 85w90 with additives be ok .

From : rwatson767

re what wt gear oil for diferential of 63 dodge 1 ton i dont know that ive ever seen a jug that said just 90 on it. just use something lighter than 90 wt and dilute with bananas as needed! did that on my 29 chrysler a long time ago. bob az .