Chud, let's say you're in 5th going 55 and then you take your foot off the accelerator. Say the car slows down to 40 and then you put foot on the accelerator again. The drivetrain will clunk for sure because the tranny is still in 5th. If it was in 4th it wouldn't clunk. Anytime you are going under 50 don't have your car in 5th. Anytime you going under 40 don't have your car in 4th. Basically keep your RPMs up so you don't lug the drivetrain when you go to accelerate.
Also, make sure your tranny mount bolts are tight. There is a good post with pictures on what to look for in the Mechanical forum.
If the bolts are tight then I would consider an aluminum driveshaft. They go for about $159 and it is a 20 minute 4 bolt job to install one. This will reduce the noise and vibrations in the drivetrain.
Bassani X Pipe w/Cats
Magnaflows (wielded in)
Pro 5.0 Shifter
Superchips Premium Fuel Chip
Steeda Underdrive Pulleys
GT Fog Lights / Tinted Windows
MGW LTD Interior Pieces
<font size=-1>[ This Message was edited by: TrueBlueBullitt on 2001-10-18 18:14 ]</font>