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XK150 ball joints

XK150 Ball Joints

I am rebuilding the front suspension on my 150 dhc and need to replace the ball joints. There appear to be two types of cups available for the lower ball joints. Bassetts has bronze cups in their kit, while British Auto has what appears to be Morganite cups in theirs. The parts book lists Morganite. What is the best choice? Any comments would be greatly appreciated. - Ron Gaeta, '59 150 dhc

What is Morganite..... and no cheap shots about parts for Morgans. - Klaus Nielsen

I might suggest that you use the updated XJ6 (1986) ball joint. you will have to knock out the ring to allow them to fit, but they will last alot longer, and require no shims to fit. - Lee Eggers

Sounds like an excellent suggestion. Have a question, what is the ring that you describe? - Gene Burda

The ring is the part that the OLD ball joint uset as its upper stop. The updated joints are complete and all you do is bolt them in place. They are a sealed unit. XJ6's would go through ball joints every 25K miles. These units (Ibelive from Germany) last much longer, and they will work on XK cars. - Lee Eggers

Re:ball joints...I didn't do them yet on my 140, no play to speak of, but probably will one day. Can you bring me up to date on where and what to get for this job? - Thanks, Barry Goldman

Evidently I am missing something---WHAT units from Germany? Do you have a part number? Are they for XJ6? I have heard of XJ40 sealed ball joints for MK IIs and E-types. I have run across sealed ball joints for the upper joint on the XK. I haven't run across a lower one-piece prebuilt assembly for XKs. - Cleo Bay Jr., 52 XK120 OTS, 56 XK140 OTS

Do you by any chance have a part number. - Klaus Nielsen

The lower ball joint kit is #GSJ129 and available from World Pac in Seattle, WA. - Lee Eggers

There was some developmental evolution with these lower ball joints. Remember the Mark V and XK120 were the first models to use them; the Mark IV and previous models had a beam axle and king pins. I believe the earliest sockets in XK120 and Mark V were bronze (can anyone with an alloy or very early steel OTS confirm this?). They had a steel centering ring above them (which the manual calls a spigot). Then they went to a fiber filled material for the socket, but still with the steel ring above. Both my Mark V and my XK120 679187 were like this, but the MkV had a grease nipple where the 120 did not. Early Mark VII's had lower sockets of what the manual calls Ferobestos, and no grease nipple. The manual says they didn't need lubrication (hmmmm) and indicates that the nipple was added to later Mark VII's, but not XK120's. My parts car 681114 (late 120) had fiber sockets with steel rings and no grease nipples. I suspect that Ferobestos (trade name from Ferodo?) and Morganite (sounds like another trade name) are either the same or similar fiberous materials. When I replaced my sockets, the new ones combined the socket and ring into one piece of Morganite(?) so I knocked out the old steel rings, and I also added grease nipples in the caps. - Rob Reilly

If you have any questions or comments send e-mail to: ted@jag-lovers.org
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