Roger1 Posted March 17, 2019 Report Share Posted March 17, 2019 Just noticed my Steering Gear Box is low on Lube. Can anyone tell me what type lube or Grease I should use. my Vehicle is a 1940 Plymouth Truck . Thanks Quote Link to comment Share on other sites More sharing options...
martybose Posted March 18, 2019 Report Share Posted March 18, 2019 I haven't got my manuals handy, but it definitely takes an oil as opposed to a grease. Marty Quote Link to comment Share on other sites More sharing options...
Andydodge Posted March 18, 2019 Report Share Posted March 18, 2019 (edited) The problem with mopar and other steering boxes is that the pitman shaft seal wears and then the lube seeps out........Penrite Steering Box Lube is a heavy weight oil that is specifically made for our type of steering boxes......grease if used is basically pushed from one area to another by the action of the worm & rollers and cannot "flow" back to where it is needed whereas an "oil" can flow...........I used the Penrite stuff in my 41 Plymouth Coupes steering box and there was a noticeable improvement..............the Pentite Steering Box Lube I have says "Made in Canada" so it should be available I'd think, in the USA...........I'd be hesitant about using a heavy gear or diff oil as the steering boxes use bronze or brass based bushings on the pitman shaft and I think that gear and diff oils are not recommended to be used where brass or bronze is used.......not 100% sure but check anyway..........But I'd fix the seal at least as even the Penrite oil would seep out if the seals R/s.............andyd Edited March 18, 2019 by Andydodge Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted March 18, 2019 Report Share Posted March 18, 2019 Or use NGLI # 00 grease... AKA penrite or Corn Head grease.... use it if you are lazy and don't want to fix the steering gear seal leak. This viscosity grease flows and will lube the worm and sector. Quote Link to comment Share on other sites More sharing options...
Roger1 Posted March 18, 2019 Author Report Share Posted March 18, 2019 Thanks,for the info guys . Think I'm going to go with the Corn Head Grease. Quote Link to comment Share on other sites More sharing options...
plymouthcranbrook Posted March 19, 2019 Report Share Posted March 19, 2019 From the looks of it the Penrite is only available from one place in southern California or one dealer in Canada Quote Link to comment Share on other sites More sharing options...
Andydodge Posted March 19, 2019 Report Share Posted March 19, 2019 The Penrite lube I have says made in Canada but packed in Australia........I would have thought that it would have been readily available in North America......andyd Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted March 19, 2019 Report Share Posted March 19, 2019 Lawn and Garden centers are another good source of #00 grease. Many mowers use #00 grease in their gearboxes. Quote Link to comment Share on other sites More sharing options...
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