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View Full Version : Heavy duty Pitman / drop-arm ball joint?



jakeslouw
13th January 2014, 10:55 PM
I seem to have seen an article somewhere with a new heavy-duty ball-joint for the Defender / RRC steering drop arm? Anybody know about this? As far as I recall, it was a German product? Bigger ball and shaft if I recall?

rar110
14th January 2014, 07:37 AM
I recently looked under a 78 series cruiser and noted the steering arm & drag link looked much lighter duty than defender standard equivalent. Front coils were the same.

I've never broken a steering arm and couldn't see the benefit or viability for making a beefed up one. Doesn't mean they're not out there.

jakeslouw
14th January 2014, 05:52 PM
No mate not the drop arm itself, just the ball-joint. The bit that wears out all the time especially if it's a Britpart item........... :o

rar110
15th January 2014, 05:36 AM
No mate not the drop arm itself, just the ball-joint. The bit that wears out all the time especially if it's a Britpart item........... :o

I fitted a grease nipple to the bottom of mine to help with wear. It seems to have helped.

460cixy
15th January 2014, 11:29 AM
I ****ed mine off and went to the disco type problem solved

rick130
16th January 2014, 09:04 AM
You need the ball joint packed with a MoS2 (molybdenum disulphide) fortified grease, and preferably with a calcium sulfonate soap/thickener.

Resists wear and is water/rust resistant far more than a 'normal' lithium complex chassis grease.

The grease nipple idea is excellent.

uninformed
16th January 2014, 10:14 AM
You need the ball joint packed with a MoS2 (molybdenum disulphide) fortified grease, and preferably with a calcium sulfonate soap/thickener.

Resists wear and is water/rust resistant far more than a 'normal' lithium complex chassis grease.

The grease nipple idea is excellent.

Is that type of grease good for the Unis as well. i.e., can I use it on all the grease points on my 110 (TREs, Unis, A frame ball joint)

rick130
16th January 2014, 12:01 PM
Is that type of grease good for the Unis as well. i.e., can I use it on all the grease points on my 110 (TREs, Unis, A frame ball joint)

Some experts say moly shouldn't be used on rolling element bearings as it may make the rollers skid, but in close to 30 years of usage (mostly Castrol LMM) I've never had a problem, and apparently it depends entirely on the moly particle size as CAT recommend their 5% moly greases for any roller bearing including uni's as they have optimised (according to CAT) platelet size for roller bearings.

Moly type greases and greases with suspended solids such as graphite and (cough, cough) lead and latterly tin napthanetes are ideal for sliding splines, ball joints and CV's.