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Hollywood Dave 07-14-2000 02:37 PM

I am 250 miles into a freshly rebuilt engine (360). Prior to the rebuild the Wagon ran smooth. Since the rebuild there is a vibration, much like a truck with Gunmbo-Mudders on pavement, at around 20mph. It will cease until about 60mph and occur with slight acceleration and deceleration. I can find a spot at the higher speed when I let off the gas slightly when things run smooth. It's not anything that makes it undrivable but it wasn't happening before. I do need to have the rear-end rebuilt (it has approx. 1/4 in. of play). My curiosity is that this was not there prior to the rebuild. Any ideas as to what my be causing this?????

Hollywood Dave
'88 Grand Wagoneer, rebuilt 360
Torker cam
32X11.50X15R BFG AT
4" Skyjacker softride
full suspension lift
Edelbrock Performer intake
Edelbrock 4bbl carb

bignblue 07-15-2000 09:36 AM

Two things to check: u-joints and motor mounts. A rebuilt engine doesn't necessarily include new mounts.

'78 Chero WT
44s F&R
"Jeep: the toughest 4-letter word on wheels"

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