On a1995 f150 4 spd std trans letter m what is the kind of lubricant in trans

if its a manual trans it is a New Process 833 if its a auto trans its a A 727

The new MOPAR ATF+4 will work fine and is far superior to the original fluid installed in the transmission.

I don't know. But I do know that any well run auto parts yard has interchange books for exactly this kind of question. Basically, any standard transmission can be made to work if you are willing to spend enough time and money. It is usually best and cheapest to stay with the factory trans.

You must have a 3.0L engine to have a 670T 3 spd trans, if so, with high mileage trans, the diff bearings will start to wear out under torque and send fillings into the governor mounted on the tranfer shaft, giving you all kinds of shifting problems, also worn front clutch disc pack and seals will do it, also total failure of the front clutch will give you no reverse, 3rd gear needs front and rear clutch to work together,pull the pan off and check for fillings and material, if lots , pull the trans for overhaul. need more info, just ask RDJRP.

If some one tells you the transmission oil in a manual trans never needs to be changed,they are wrong.
Mine came out black and thin.
I changed it and its great now. The fluid must have been causing the syncros to hang up.I also changed the oil in the transfere case and it wasn't very good either. I will probably do both differentials also.
LUBRICANTS WEAR OUT..

Quite frankly I'm a GM guy, but after reading your question, to me a 3-4-or 5 spd , Below that shifter is a switch to indicate when the shifter is put into the reverse gate. Test its continuity and replace. Later model std's have switches on the trans. Hope this helps

jack up the truck, remove back brake drums and loosen emergency brake hardware next to calipers.  Reassemble and lubricate all cables.
That's it in a nut shell.  

SWAPPING ENGINE AND TRANNY? the auto to 5 spd will be a pain would really need a donot truck to get all the clutch linkage driveshaft and all that plus the ecm is gonna think truck is automatic

No they don't, the cases look the same but they have part numbers, so the internal parts and how the trans is operated is different. Here are the part numbers. Many of the big parts may interchange.

Tribute Trans # Ford LA4A-EL 4 Spd. Automatic Transaxle

Ford Escape # Ford CD4E 4 Spd. Automatic Transaxle