I have to get rid of one of my nicer mods my 3.5" aluminum DS

This is a great DS for lt1's and ls1's - the next step would be a Denny's which is double the price.

Details / Propaganda:
Custom Lingenfelter Performance Engineering (LPE) 3.5" diameter aluminum driveshaft for L98, LT1 and LS1 V8 equipped Camaros and Firebirds. Fits both manual and automatic equipped vehicles.

Reduce unwanted driveshaft vibration and rotating mass by roughly 5 pounds over the steel LT1 and L98 driveshaft with this custom 3.5" high strength aluminum driveshaft that weighs only 12.2 lbs. This driveshaft also provides a much higher critical speed (maximum operating RPM) than the stock 2.5" steel shaft, the 2.75" aluminum 1LE shaft or even the 3" LS1 shaft. The stock steel shafts in the 1993 to 1997 LT1 cars are 2.5" in diameter. The 1988 to 1992 1LE aluminum shafts were 2.75" in diameter. The 1998 and newer aluminum LS1 driveshafts are 3.0" in diameter.

The 3.5” diameter LPE driveshaft has a critical speed of roughly 11,000 rpm (over 50% higher than the factory driveshafts). This aluminum driveshaft is 3.5" in diameter and weighs 12.2 pounds. The U-joint centerline to centerline length is roughly 40-9/16”.

In testing performed by General Motors, this driveshaft did not show resonance (hit critical speed) until roughly 237 mph (tested in a 6 speed LT1 equipped F-body with 3.42 rear end gear).

LPE recommends this heavy-duty driveshaft for virtually all high speed and racing applications.

link: http://www.lingenfelter.com/lingenfe...50&pf%5Fid=217

Price: $400 canadian obo