[Sam Mac]

Jumper

You need to find a better JD dealer. If the JD yoke is the same here is a pic and parts list of what they use on a 318 with a rear PTO for a rear finish mower.
DRIVE SHAFT
Cart KEY PART NO. PART NAME QTY SERIAL NO. REMARKS
1 M85436 YOKE 1
2 AE793E CROSS AND BEARING ASSEMBLY 2 (SUB FOR AM38858)
3 AM39564 YOKE, WITH TUBE 1
4 M85437 SNAP RING 1
5 M85438 BEARING 1
6 AM39565 GUARD 1 INNER
7 AM39563 U-JOINT,WITH TUBE & SHIELD 1 (SUB AM39436)
8 M85439 YOKE 1 (SUB AM39436)
9 M85436 YOKE 1 (SUB FOR AM39568)
10 M83826 SNAP RING 1
Cart KEY PART NO. PART NAME QTY SERIAL NO. REMARKS
11 M83827 BEARING 1
12 AM39567 GUARD 1 OUTER
13 AM39566 YOKE, WITH SHAFT 1 (SUB AM39436)
14 AM39436 DRIVE SHAFT 1
15 19H3220 CAP SCREW 1 1/4" X 2-1/2"
16 M40333 LOCK NUT 1 1/4"
17 JD7760 LUBRICATION FITTING 1
18 E4298E SNAP RING 4