Well i know that the cummins is a strong engine, but i'm worried about the tranny. I'm lookin at a 95 4X4 and i took it for a test drive the other night and all seemed good, but it seemed to have long shifts. It wouldn't shift till 2700-2800 rpm. Now maybe i've been driving chevys too long, but is this normal?? Has approximately 30,000 on rebuild. Thanks in advance!!