Thank you very much for your information, much appreciated, very helpful.
In assuming your truck is a manual transmission model- yes, the trans & diff are a common resevior. Drain the water from the 2 drain plugs you saw, remove the level plug in the front of the diff & fill through the fill port in the trans. Use multi- viscosity gear oil 90-120. Should take 8 pints according to the manual.
I've got a G51P Yale forklift and I've been trying to get it working. The gearbox was full of water and I'm trying to locate some information about the oil type it takes in the transmission and diff. It appears that it's all one oil, is that correct?.. and the only level bung I can find is at the front of the diff. and the only filler I can find is on top of the gearbox/diff in front of the selector. I'm just confirming if this is the only level bung and filler for both the transmission and diff as there is 2 separate drain bungs underneath. I would greatly appreciate your information and advice on this matter.
I was a Yale dealer road tech in 1979. A customer of mine has one of those in great condition. Let's me PM it once a year.
here is a pic, add your own http and remove the spaces around the dots:
ny. forktechs. com/Img0979. JPG
Mrfixit just about wins the "dang you old and still remember things" category...
G51P had the Chrysler flat head
not a G83P as it had the OHV Chrysler H225 slant 6.
I'm sure it is a Chrysler 6L..... tires are pneumatic, I will look for some ID. I just never knew WHERE to start looking...you think it may be G83?.....run's great but i would like to get a manual, probably off ebay.
1. Look on the frame member on the front cowl between the mast and chassis for a truck serial number stamped in the frame. If the unit has been repaint several times you'll need to to some paint scrapping..
2. Are you sure the engine is a Chrysler flat head - seems to me in the 60's Yale used Continental Flat heads 4 (F163) & 6 (F227)cylinder & in the late 60's or real early 70's went to the Chrysler slant 6, H225 OHV engine in their G83C & G83P series.
3. Are the tires press on solid or pneumatic (truck tire style) shaped. The complete tire size should be on the sidewall of the tire
4. Back them the nameplates were aluminum plates pop riveted on the dash or seat deck or in the operator foot area on a vertical member - look for 4 holes that form a rectangle in this area. If you find them & no plate - it's missing. You'll need to find the s/n.
Hope this helps - being that old, parts will be hard to find anywhere.
can you post a picture some where, or send it to me and I will post it?