D17 HP

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   How much torque do you think a D17 rear end and power director take. We are going to build a lengthened D17 with a V8. If any one has done this with a D17 did they remove the power director and run straight to the rear end. I would like to run just the V8 with a scatter shield and no transmission with a shaft back to the tractor input shaft and kepp the PD. There is a guy pulling around here that uses a 350 with an Allison auto out of a bus.

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BrianC,Ont Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Belleville Ont Points: 903	Post Options Post Reply Quote BrianC,Ont Report Post Thanks(0) Quote Reply Topic: D17 HP Posted: 28 Feb 2010 at 1:51pm
	How much torque do you think a D17 rear end and power director take. We are going to build a lengthened D17 with a V8. If any one has done this with a D17 did they remove the power director and run straight to the rear end. I would like to run just the V8 with a scatter shield and no transmission with a shaft back to the tractor input shaft and kepp the PD. There is a guy pulling around here that uses a 350 with an Allison auto out of a bus.

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 20861	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 28 Feb 2010 at 2:15pm
	The Power Director clutch would be suspect to fly apart/explode with speeds over 4000 rpm on a continuous basis. The rearend/transmission will take a lot when you only weigh 5000-5500 lbs. Modern day tire cutting(and mechanical sleds) usually leaves you with short lug bar depth which cuts down on starting traction stress on the driveline.

AndrewGubbels Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: nebraska Points: 1499	Post Options Post Reply Quote AndrewGubbels Report Post Thanks(0) Quote Reply Posted: 02 Mar 2010 at 6:45am
	we have a local guy in our pulling group that has a v8 mod D17. He still has the power directer in the tractor with a 350 chevy. He runs I would say 5500 rpm down the track when he gets up to speed. It runs very well. He does not shift the power directer on the go but he does use the high and low sides. It is just for the short 300 ft track. The time spent over 4000 rpm is only 10 seconds and his pull is over. He has never had problems and did very well. I can give you his name and number if you would like to talk to him about it. I hope this helps! Andrew Gubbels
	Andrew Gubbels Gubbels Restoration