Nv4500/205 Driveshaft Lenght
I'm about to make the swap from stock TH400/208 to 4500/205. Planning the driveshaft situation has me scratching my head. This is in a 85 k20 LB. The 4500 combo is 11 inches shorter overall than the 400/208. I have a fixed output on the 205. Therefore, the rear shaft will be converted to a slip/spline but, it will be just shy of 64 inches. That seems excessively long? Denny's Driveshaft only offers shafts up to 60 inches. I assume that's to keep it from "whipping?" Do I need to consider going to a 2 piece shaft? Don't really want to deal with a center bearing and another cross member.
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Re: Nv4500/205 Driveshaft Lenght
One way to get around the two piece shaft is to run an aluminum one. Can run longer shafts with aluminum due to weight. A lot of the new trucks (mid '90's & up) run aluminum shafts. Don't know max length on aluminum, Denny's may have that info.
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Re: Nv4500/205 Driveshaft Lenght
B.W.- Thx, I see now that Denny's sells aluminum shafts up to 64".....$695.00!
Maybe the 2-piece setup is the best way to go. I could get my current shaft shortened for the carrier bearing to the diff section. I'd only have to come up with the front half and the bearing/support. In fact, I know where a square suburban is sitting. I might go have a look underneath. |
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