Transmission Question 1988 300E (Need Technical help)n
 

I have a 1988 300E that I would like to pull behind my RV all wheels down with a towbar. Many ML's are pulled this way with the addition of a Ramco oil pump. Ramco does not recommend this application, however admits many are on the road working fine. They do not know of 300E being pulled this way.If it is OK for ML why not for the 300E. Is the transmission so much different. You can pull car with engine ideling and no problem with lubrication. The easy answer has been why do I not use a drive shaft disconnect, however, since many, many cars are pulled 4 down with a pump why not the 300E NEED HELP FROM A TRANS EXPERT

The 1988 300E has a secondary pump in the tranny. So, in theory, you should be able to knock it into neutral and pull it....As long as the secondary pump is working.

MB doesn't recommend any towing where the rear wheels are on the ground!! The rear pump is for TOW starts only! I've seen at least 10 transmissions ruined by towing on the rear wheels!! READ your owners manual. MAX towing on rear wheels is 20 miles UNDER 30mph.

M. B. Doc- - -It's great to get a response. Note that I had planned on putting a ramco electric pump on the 300E same as people do on the ML to supply pressure/lubrication to the transmission while being towed. Ramco dos not recommend this and trys to sell dreveshaft disconnect, however, does admit that ML people are using pump (not recommended) but working fine to best of their knowledge. I wanted to make sure this would work for 300E. Please advise if the pump will supply enough lubrication to transmission- - pump puts out approx. 13 PSI.

M.B. Doc: what exactly do you mean by "ruined"? Mine was towed 60 miles on the rear wheels in neutral but the transmission was already dead and wouldn't pull. Will it be suitable as a core for rebuild? Core charge is $1000 so I need to find one that is if this one is unsuitable.:confused: