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Alan Roehrich · 03-27-2010, 04:18 PM

The 250 forward input drum is a lock up drum, and is the same as a 350 forward input drum. The 250 direct drum has no sprag, you cannot use it in a 350 or you will not have 2nd gear.

The output shaft from a 250 is "gun drilled" and slightly lighter. The sun gear shell from a 250 is "swiss cheesed" and slightly lighter. Combine them with an ATI aluminum forward input drum and an ATI aluminum direct drum and you have a light 350.

03-27-2010, 04:18 PM	#8
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,113 Likes: 1,571 Liked 1,825 Times in 414 Posts	Re: Turbo 250 or 350 The 250 forward input drum is a lock up drum, and is the same as a 350 forward input drum. The 250 direct drum has no sprag, you cannot use it in a 350 or you will not have 2nd gear. The output shaft from a 250 is "gun drilled" and slightly lighter. The sun gear shell from a 250 is "swiss cheesed" and slightly lighter. Combine them with an ATI aluminum forward input drum and an ATI aluminum direct drum and you have a light 350. __________________ Alan Roehrich 212A G/S