Last week I purchased an 83 300sd, nice body, nice interior, but the running gear needs help, odometer stopped at 308K+ miles. Engine runs strong, but the first issue is the trans shifting. I loosened the boden cable to where there is considerable slack, 1/2 shift is slightly severe, 2/3 is about the same, but the 3/4 shift is quite severe and won't shift until you take pressure off the accelerator. Tomorrow I will check how much vacuum I have and if the modulator holds a vacuum. Past that I am lost, any and all help will be appreciated.

Thanks, Steve