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Identifying gears and synchronizer hubs for FS5W60A

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ddgonzal	Re: Identifying gears and synchronizer hubs for FS5W60A	#11
Moderator Joined: 2001/5/3 7:04 From 48 North Group: Registered Users Contentmaster Usermaster Posts: 31575	It is a specialty nut, so regular parts store probably won't carry it. Either Nissan, or carry it in to NAPA and see if they can match it (it is a standard metric nut but with a what do you call it? a locking flange that you dimple with a drift to lock it) Posted on: 2016/7/16 8:01

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Rallytwit	Re: Identifying gears and synchronizer hubs for FS5W60A	#12
No life (a.k.a. DattoMaster) Joined: 2002/11/26 0:38 From Las Vegas USA Group: Registered Users Posts: 2032	Ok thread hijack; I am curious to what the OD on the main shaft is? Namely at the point the gears ride on. My brain is working overtime and I'm curious as to the ability to mix and match Datsun parts. Also what is the ID on the in dual gears? Tom Posted on: 2016/7/16 20:40

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TexasMidget	Re: Identifying gears and synchronizer hubs for FS5W60A	#13
Home away from home Joined: 2015/11/10 17:48 From Fort Worth, Texas Group: Registered Users Posts: 213	Tom, Are you thinking about interchanging transmission parts to convert a 4 speed to a 5 speed? If so, I know the rear housing on a 5 speed is longer. Posted on: 2016/7/16 23:32

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Rallytwit	Re: Identifying gears and synchronizer hubs for FS5W60A	#14
No life (a.k.a. DattoMaster) Joined: 2002/11/26 0:38 From Las Vegas USA Group: Registered Users Posts: 2032	I'm thinking if Datsun mainshaft gears have the same ID you may be able to mix and match gears so that in order to change ratios only the countershaft needs to be remachined. Basically I'm looking for a way to cut the costs, if you just have to mod the countershaft rather than both the countershaft and make a new main shaft gear. It's likely not possible but I'd love to know without taking my 60 series box apart. I have picked a 4.625 ring and pinion with the intent being that mostly 3-5th will be used but there are two corners on my locks track that will require 2nd gear. As you know the gap between 2nd & 3rd is huge. I just had a 56 series close ratio countershaft repaired and that was reasonable ($600 U.S, if I can get the 60 series modded for,around the same amount it would be total worth it. Tom Posted on: 2016/7/17 1:00

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ddgonzal	Re: Identifying gears and synchronizer hubs for FS5W60A	#15
Moderator Joined: 2001/5/3 7:04 From 48 North Group: Registered Users Contentmaster Usermaster Posts: 31575	The gears I would think are non-interchangeable as they are for shafts 56 and 60 mm apart? Have you seen the Dan Hall 5-Speed? Uses a 60L 4-speed case that is modified to fit Hewland Mark 4-8-9 gears Posted on: 2016/7/17 1:08

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ddgonzal	Re: Identifying gears and synchronizer hubs for FS5W60A	#16
Moderator Joined: 2001/5/3 7:04 From 48 North Group: Registered Users Contentmaster Usermaster Posts: 31575	Quote: what the OD on the main shaft is? Namely at the point the gears ride on. The main shaft is stepped in diameter to allow assembly of the bearings and splined hubs Quote: Starting from front of shaft, is the largest bearings, going on down in diameter MAIN SHAFT HUB SIZES & GEAR BEARING SIZES 32601 H7301 3-4 splined hub 32264M H73 3rd gear needle bearing ---------- 32264M H73 2nd gear needle bearing 32601A H73 2-1 splined hub 32264 67-H73 1st gear needle bearing ---------------------------------- 32273 H73 25mm mid-shaft ball bearing (at sandwich plate) ---------------------------------- 32264 H73 REV gear needle bearing 32605B H90 splined hub 32350 H90 5th gear needle bearing ---------------------------------- 32275 H97 22mm end-shaft ball bearing The H73 parts are probably shared with the 60L 4-speed, the H90 with the 60L 5-speed I haven't been able to find the specs of the needle bearings Posted on: 2016/7/17 1:51

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Rallytwit	Re: Identifying gears and synchronizer hubs for FS5W60A	#17
No life (a.k.a. DattoMaster) Joined: 2002/11/26 0:38 From Las Vegas USA Group: Registered Users Posts: 2032	Dave I am painfully aware of the Hall Hewland box as I stupidly passed on one that PJZ offered for sale. I'm now kicking myself of course. I haven't done the math on the gear tooth count but if for example 56, 60, 63 series gears fit on any mainshaft one could in theory get the gear tooth count you need on the main shaft then machine the cluster gear accordingly.......I seriously doubt parts are mix and match but one never knows. Tom Posted on: 2016/7/17 5:27

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ddgonzal	Re: Identifying gears and synchronizer hubs for FS5W60A	#18
Moderator Joined: 2001/5/3 7:04 From 48 North Group: Registered Users Contentmaster Usermaster Posts: 31575	That reminds me ... Quote: The synchronizer hubs are different for 1st/2nd and 3rd/4th. Any way to identify the difference between these two? Yes, the 1st/2nd hub has a larger diameter, so it will slide of the shaft first. The 3rd/4th won't slide all the way up the shaft Quote: And no markings or stamp on the gears. Any way to identify the difference between the gears? The gears are progressive larger O.D. 1st is largest, 3rd is smallest Posted on: 2016/7/17 5:42

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TexasMidget	Re: Identifying gears and synchronizer hubs for FS5W60A	#19
Home away from home Joined: 2015/11/10 17:48 From Fort Worth, Texas Group: Registered Users Posts: 213	Thanks for the info DD. Didnt do any work on the transmission today. It is brutally hot here in Texas and slowly putting it back together. Maybe Sunday and will post some pics. Posted on: 2016/7/17 7:01

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Datman95	Re: Identifying gears and synchronizer hubs for FS5W60A	#20
Home away from home Joined: 2010/8/11 12:04 From Kelmscott Western Australia Group: Registered Users Posts: 651	Gears not interchange beween boxes synchro bulk rings tapped edges are diffrent sizes Posted on: 2016/7/17 7:21
	_________________ 71 Datsun 1200 ute with A14 fuel injection and T50 59 Morris minor ute with A15 fuel injected with intercooled turbo
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