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Well It's driving now--'89 half ton reg cab long bed, 1990 6bt cummins with----TH400 GM tranny with custom built low stall 13" six bolt converter, 2:76 12 bolt rear with G 80 locker. Pinnacle 3 1/2"--4" mandrel bent exhaust with custom fabbed downpipe. Hybrid motor mounts and custom hacked/fabbed fan shroud. Light truck--strong engine & tight converter with tall gears=nice road machine. Hard to get engine up to 140 op temp. Got a custom tranny pan for the 400. Deep aluminum casting includes solid t/c cover that bolts to bellhousing adapter and is one part with oil pan. Finned with drain plug! Came from 4bt cracker van with th400. using stock GM single row v8 alum radiator. power steering lines bolted right up. one bad vacuum pod--needs to be replaced. Major pains were starter clearance on passenger side A arm attachment and pass side motor mount stud and bolt thru frame. If I had it to do again I would rethink this mount. Highest EGT's in the 850 range and about 27 lbs boost before defuel. Truck is strong and smooth. Need to fix the drivers side window operator and motor re calibrate the speedo and re clearance some exhaust parts (muffler hittihg drive shaft) and she'll be ready for my daughter to drive to school after new years
Three Cummins in the family now--one wrapped in a GMC!
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