The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - What Lubricant To Use In A Manual Steering Box?

**hatzie** · 07-24-2016, 01:32 PM

Don't use gear oil. It will leak.

Here's the steering box thread by Gary Ramadei from Digital Corvettes.
http://www.digitalcorvettes.com/foru...ad.php?t=76773
Lucas Red "N" Tacky and Marine Green were mentioned as good greases to use because they don't separate.

The GM 1051052 Steering Gear Lubricant is obsolete. They say not to use EP chassis grease.
Ford used Saginaw steering boxes too... My 1972 F250 uses Ford C3AZ-19578-A grease.

Here's the excerpt from the 1973 GM light truck service manual.
------------
Manual Steering Gear
The steering gear is factory-filled with steering gear
lubricant. Seasonal change of this lubricant should not
be performed and the housing should not be drained-no
lubrication is required for the life of the steering gear.

Every 36,000 miles, the gear should be inspected for seal
leakage (actual solid grease-not just oily film). If a seal is
replaced or the gear is overhauled, the gear housing
should be refilled with No. 1051052 (13 oz. container)
Steering Gear Lubricant which meets GM Specification
GM 4673-M, or its equivalent.

NOTE: Do not use EP Chassis Lube, which
meets GM Specification GM 6031-M, to
lubricate the gear. DO NOT OVER-FILL the
gear housing.
------------------------------

07-24-2016, 01:32 PM	#4
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 5,021	Re: What Lubricant To Use In A Manual Steering Box? Don't use gear oil. It will leak. Here's the steering box thread by Gary Ramadei from Digital Corvettes. http://www.digitalcorvettes.com/foru...ad.php?t=76773 Lucas Red "N" Tacky and Marine Green were mentioned as good greases to use because they don't separate. The GM 1051052 Steering Gear Lubricant is obsolete. They say not to use EP chassis grease. Ford used Saginaw steering boxes too... My 1972 F250 uses Ford C3AZ-19578-A grease. Here's the excerpt from the 1973 GM light truck service manual. ------------ Manual Steering Gear The steering gear is factory-filled with steering gear lubricant. Seasonal change of this lubricant should not be performed and the housing should not be drained-no lubrication is required for the life of the steering gear. Every 36,000 miles, the gear should be inspected for seal leakage (actual solid grease-not just oily film). If a seal is replaced or the gear is overhauled, the gear housing should be refilled with No. 1051052 (13 oz. container) Steering Gear Lubricant which meets GM Specification GM 4673-M, or its equivalent. NOTE: Do not use EP Chassis Lube, which meets GM Specification GM 6031-M, to lubricate the gear. DO NOT OVER-FILL the gear housing. ------------------------------ __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.