Choice of fluid; steering box

[Scottjeffrey]

After reading here, it seems I need a gl4 hypoid gear oil, 80/90w for my steering box.  When I am searching for some to buy, some say Gl4 but don't mention 'hypoid', some are synthetic, etc.  May I ask the name of what you use which is currently available?

Many Thanks,

Scott

[Stevenc22]

This is what i used in my newly rebuilt steering box. Semi fluid grease. Less likely to leak since its a grease, but since its a fluid grease it still runs and circulates to all the inside of the box.

 

Was a real pain to fill the box though. Had to pump it with a large syringe

 

Steering Box Lube by Dynolite | Moss Motors

MOSSMOTORS.COM

---

Steering Box Lube by Dynolite

 

[Buckeye]

Back in 2014 replaced steering box and rear axle fluids with this. Purchased it from NAPA Auto Parts. 

Edited July 23, 2023 by Buckeye
.

[Scottjeffrey]

7 minutes ago, Buckeye said:

Back in 2014 replaced steering box and rear axle fluids with this. Purchased it from NAPA Auto Parts. 

And they still sell it. Thank you so much, question solved. Much appreciated Buckeye.

Best Regards,

Scott

[Mike Self]

You really need hypoid oil, as it's formulated for the extreme pressure generated when curved gear teeth mesh, as in a differential--or the steering box.  I'm neither a mechanical engineer nor a lubricant chemist, but if those folks say that's what to use, and hypoid (curved) gears have been in use for well over 100 years, who am I to argue?

 

mike

[AceAndrew]

For posterity… information on oils/lubes can be resourced here.