2000 Isuzu Trooper 6 cyl Four Wheel Drive Automatic 111000 miles
Transmission has been replaced (Jasper). Eggshell acceration from 35-45 mph after transmission heats, I have a noise rrump rrump or growl. It may not make noise again for 1/2 mile. Rear end has been checked, no metal. U Joints have been replaced. Can feel vibration on rear end when placed on a rack and wheels are turning. Could be travel from transmission or drive line. No electronic problem or read-out when checked on a dianostic system check.
This problem accured after transmission was replaced. 4WD drive system seems to be working fine. This does have torque on demand.
Thanks in advance for any information.