I drove my 1995 300dti 110 through a deep river but nothing to serious only came up the the top of the wheel, i didn't stop and kept a constant pace. the river was only two meters wide. for this i selected high range locked diff ( right choice, maybe, maybe not). When getting out on the other side with no issues i proceeded to put the car back into working diff, and this is when i had the issue! I could select the right ratio however when trying to pull away it made a horrible grinding sound and i had no drive what so ever (absolutely nothing) put it back into locked diff and i have drive. so my problem is i am now stuck in locked diff, both high and low ratio work fine. Both high and low in working differential both slot to where they should however when selecting any gear i have the grinding sound!!
any ideas on what the problem might be???