1991 Chevrolet Astro Sons 91 Silverado Bad Clunk Shifting Park Other Gears

1991 CHEVROLET ASTRO
188,000 MILES
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My sons 91 silverado has a bad clunk when shifting from park to other gears, worse when shifted to drive. We changed tranny mount, filter, center support mount, tranny tail shaft seal, and pinnon gear seal,also u joints at tail shaft . Truck was shifting nice and smooth, then I noticed his
steering coloum was coming apart at the hub so I put back together . And it started cluncking again , however I retarded the timing to bring idle down a bit and it started shifting good again. I also replaced neutral safety switch.
Any help would be greatly appreciated
geterdone@gmail.com
Mar 23, 2013 at 4:41 PM
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ASEMASTER6371
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first, put the timing back to where it is supposed to be.

there is a screw on the throttle body if you need to adjust the idle

it sounds like the torque converter may be your noise.

Roy
Mar 23, 2013 at 4:53 PM
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