If I'm in OD going about a constant 50-60ish at 1000rpms my car shdders, If put the gas down or shift it into 3rd to rev it above 1000 the shuddering goes away instantly. Any ideas 
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1994 Firebird Formula 138,000 Completly Stock
1995 Caprice 9c1 61,000
2001 Intrigue GL -
Does it make a loud noise also, kinda sounds like a helicopter? If so, it might be the driveshaft. Try going up to around 75 or so and hold that, see if it comes back. If it is the driveshaft, get the 1LE aluminum driveshaft and you'll be set. If you already have it, then don't mind me...i'm high on DayQuil lolSteve
79 FSJ - most expensive AMC Jeep ever
Mods
87 GN - its just a 6...
Mods
93 Z28 - slightly tweaked
Mods
http://home.comcast.net/~budlopez
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Never noticed a noise I just took it for a cruise and it wasn't shaking as bad as it normally does.
1994 Firebird Formula 138,000 Completly Stock
1995 Caprice 9c1 61,000
2001 Intrigue GLComment
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I noticed that you have a lot of miles on your car. I'm assuming that you've done the tune-up, right? Does anything happen at idle or low speeds?Steve
79 FSJ - most expensive AMC Jeep ever Mods
87 GN - its just a 6... Mods
93 Z28 - slightly tweaked Mods
http://home.comcast.net/~budlopez
Comment
Comment