freight train

I just acquired a Mag-hytec rear end cover that will allow me to have a total of 6 qts of oil in my rear end. I currently use a regular gear oil. But I want to put the very best in it. Its a regular open rear.(wish it was a anit-spin). Do you guys think a synthetic is the way to go? And if so what brand are you running and wieght? Thanks for your opinoins!

jimbo486

x2 ^^^ i'd like to get a mag-hytec cover for mine. and i've got a posi-traction. not sure what kinda lube those clutches need or work best with.

SMoKeNU

I think they recommend 80-90w for normal use light towing and 90-120w for towing.

EDIT: I think most use Royal Purple for the heavy weight

Chris

freight train

I cant remember the brand name of what I used to ues in my other truck. I got it at wal-mart or autzone. It was in a little white and blue tube that you simply added to the oil. Seemed to work perfectly! I know its very vague! Sorry.

jimbo486

just some type of an additive for standard gear oil?

freight train

It was just an additive.

pulltilbroke

Trans-X is what your thinkin of.

I run Lucas 85-140 extreme pressure gear lube in my 80

Mr. Big Ram

I run LE 607 in mine, plus a tube of Equa-torque.

u.s mma

royal purple 75-90.

90firstgen

X2 Royal Purple 75w-90

Alwaysworking

80-90wt gear oil
same goes in the trans, t-case and front end

now if the engine would use it i'd just need one bucket of oil

Bogurt

i run amsoil. different weights depending on what im doing. i use amsoil slip-lok as an additive

SMoKeNU

You use the 80-90wt gear oil in the transmission? How is that working out for you? I just replaced whatever was it in when i bought the truck with 5w30W Synthetic motor oil "was told that was the way to go" but not the transmission is very notchy feeling and is having problems with 3rd gear. I even over filled it with 5 quarts.

Chris

GasganoFJ60

AmsOil 80-90 gear lube.

Alwaysworking

mine shift fine, cold there a little harder to shift but not much