z ya Posted January 19, 2002 Share Posted January 19, 2002 I posted this in the drivetrain section but received no responce. I removed my r180 from my 240 to replace it with a r200 I got from an 280. The yokes are different in both bolt pattern and in pilot diameter. The JTR book says I need the one with the 2.25 pilot. The problem is that the one from the r180 has a different spline count and pinion diameter? I have the conversion flange from JTR on my drivshaft. Any help would be great? Quote Link to comment Share on other sites More sharing options...
Guest Azel Posted January 19, 2002 Share Posted January 19, 2002 I'm sorry, but I'm a little confused. Are you talking about the 240Z or the 240SX? I know this is a Z board, but the SX's also have R180's. Quote Link to comment Share on other sites More sharing options...
z ya Posted January 19, 2002 Author Share Posted January 19, 2002 The 180 came from my 70 240z and the 200 came from an 75 280z. Quote Link to comment Share on other sites More sharing options...
pparaska Posted January 21, 2002 Share Posted January 21, 2002 To use the JTR sourced driveshaft adapter, you'll need and R200 yoke from a 280Z (280ZX also?) that has the 2.25" pilot diameter. Only some of the 280Z's had R200s with this flange. The one I have has a 2.00" pilot diameter. I've found more R200s with the 2.00" pilot diameter. Unfortunately, I looked at all the manufacturers for auto,truck, and heavy equipment driveline stuff and couldn't find a suitable yoke for the R200's 2.00" type flange, with a decent sized u-joint. BTW, the R180 yokes won't work as the pinion is smaller diameter and fewer splines. Quote Link to comment Share on other sites More sharing options...
DavyZ Posted January 21, 2002 Share Posted January 21, 2002 So the yolk must be swapped and he'll be good to go? That's it? That sounds easy enough. Thanks, Pete. Davy Quote Link to comment Share on other sites More sharing options...
z ya Posted January 21, 2002 Author Share Posted January 21, 2002 Problem is I cant find the yoke. All of the r200 280's I saw had a larger looking flange. The bolt hole centers look to be wider? Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted January 21, 2002 Share Posted January 21, 2002 Zya, try this. Take all the measurements that you can off the old R180 you have and call Eric at Zparts in Richmond 510-233-2624. He has a supply of R200s and can compare pilot and bolt pattern dimensions with what you have. Quote Link to comment Share on other sites More sharing options...
z ya Posted January 22, 2002 Author Share Posted January 22, 2002 Dan, talked to Eric yesterday at Zparts. He is a rally nice guy. Both both of us could not figure out the solution. If anyone has one, I need an r200 yoke with small bolt holes and a 2.25 pilot! Quote Link to comment Share on other sites More sharing options...
pparaska Posted January 22, 2002 Share Posted January 22, 2002 That yoke is not easy to find (R200 with small 8mm bolt holes and 2.25" pilot hole). BTW, an old JTR manual version lists the part number as NEAPCO/SPICER 2-2-899. That uses a smaller U-joint (1210 series as opposed to the standard Chevy 1310 series). I personally don't like the 8mm bolt size - 10mm or 3/8" seems more up to the job of holding the torque of a V8. The adapter that Michael Ol bought from JTR was much larger, took a 1310 joint, and had a different number on the part, I THINK it was 2-2-459 : http://www2.dana.com/expert/wc.dll?DSD~dedsec~4~2-2-459~ All the Spicer 1310 series flange yokes are here. Note that it's listed as having a 2.375 (2-3/8") pilot diameter. Maybe that's a typo? Maybe this is the wrong part number? Also, it lists 3/8" bolt holes. And it's hard to tell if the bolt pattern is correct, even though the bolt circle is given, but no angle or definition of the rectangular layout of the 4 bolts. Anyway, its less risky to just order it from JTR, but you might be find it cheaper and faster elsewhere. Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted January 23, 2002 Share Posted January 23, 2002 Ok Zya, I have another posibility for you. Call Drive Line Sevice of Concord 925-682-3340. The old man died last year (he made all the drive shafts for Scarab back when), but I understand his son has taken over the business. Don't know how far the accorn fell from the tree, but it's worth a shot. Quote Link to comment Share on other sites More sharing options...
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