McGIDI
Registered User
I am going to do a full fluids change when i get home from here... I know what im doing for oil but not for tranny and diff... what weight should i run...
T19 oil and diff oil preferences...
- Thread starter McGIDI
- Start date
idiabuse
Full Access Member
80W90 for the 10.25 rear
80W for the T-19
80W for the T-19
McGIDI
Registered User
thanks man... does it matter which brand i dont think these trucks are as picky as far as gear oils...
idiabuse
Full Access Member
It matters enough you get IP banned from sites for mentioning brand...
McGIDI
Registered User
copy that... dang...
justinray
Contributor
Do what?
I was under the impression that the T-19's called for 50w. On the Novac website they say it's acceptable to run 50w in most of the 4-speed truck transmissions. SM465, NP435, etc.
if you have a posi rear, IRC 85-140 full synthetic!
80/90 reg in trans, however I'm partial to a 85/140 synthetic for trans too!
80/90 reg in trans, however I'm partial to a 85/140 synthetic for trans too!
McGIDI
Registered User
well crap im confused!!!
lolwut?
If a board has a problem with someone mentioning what brand they prefer and why, than it's probably not a site worth going to because all they're doing is pushing their advertisers on you wether it's good stuff or not.
MedicMoe
Full Access Member
I have 85-90 in mine. Over filled by 3/4 quart.
Some folks say that gl5 and gl6 has addatives that can damage the brass parts in the trans. Don't forget that gear oils and motor oils are rated on a different scale. a sae 50 motor oil is the same viscosity as a sae90 gear oil.
Here is a viscosity chart. http://www.bobistheoilguy.com/viscosity-charts/
Kevin 007
Full-floater
I run 75W-140 in T-19's. And the same in the rear. But it also gets colder up here then it does down there....so.... you may not benifit from the extra spendy synthetic
