Thread: Bump stop clearance

On a Puma, definitely yes - the front D shaft is very sensitive to any increase in operating angles.

I strongly suggest you don't run it like that for any distance - swap the old springs back in or stump up for a DC front D shaft.

Red90 (a member on here) posted up this spring chart linked below on his website,

land rover spring specifications

The colours that you have said that you got from Karcraft are the standard fitment for the 130 (front) and as such do not require any modifications to the driveline.

They are also the optional fitment to the 110's with the factory heavy duty suspension option (and as above do not require any modification to the drive line) and also are the standard fitment springs for the rear of the defender 90's.

The springs that you purchased from Karcraft should be Woodhead brand.

Mike.

Factory springs or not, the Puma's are very sensitive to any increase in front height - there's been quite a few cases of 130s on stock springs with driveline vibration issues?

See post #5 in this thread by way of example: Puma 130 driveline vibration

Originally Posted by n plus one

Factory springs or not, the Puma's are very sensitive to any increase in front height - there's been quite a few cases of 130s on stock springs with driveline vibration issues?

See post #5 in this thread by way of example: Puma 130 driveline vibration

Quite possibly there are other issues in this referenced vehicle that come into play....
A fair number of TDCi 130's came out of the factory with chassis not terribly well aligned.
I have measured upto a 27mm variance in alignment of the engine/gearbox/crossmember positioning welds between 130's that I have looked at.

Anyways, the super duper custom replacement front drive shaft on this vehicle (that you referenced above) recently gave up the ghost.

Mike.

Originally Posted by 90@

Anyways, the super duper custom replacement front drive shaft on this vehicle (that you referenced above) recently gave up the ghost.

Mike.

Sorry to diverge from the OP. I get annoyed by one off shots about a product failing without context. Either tell the whole story or leave it alone.

Mick (CAL415) is pretty cluey about his vehicles. Without any knowledge of his problem I am familiar with TW's double cardan shaft. A common failure is the centre ball joint. There was much commotion about this joint in threads years ago originating from the Bailey Morris DC joints. There is a grub screw for a grease nipple for the centre ball joint in the TW shaft. It is very difficult to get to with the shaft in situ and to service it you remove the shaft, open up the yoke to get access to the grub screw to insert a nipple and grease the joint. Like all uni joints, failing to grease them they run dry and fail. I found out the hard way and now have to rebuild my centre ball joint. A mechanic not familiar with this hidden grub screw will overlook it during servicing. Not a fault of TW, look to your mechanic or yourself for failing to service the shaft properly.

FYI anyone that has this problem - the centre ball joint parts can be sourced from Hardy Spicer SCV-82A or Neapco 7-0082.

MLD

The TW shafts I've seen have a grease nipple that accepts a needle tip, and Tom supplies a nylon needle tip with the shaft.

Yes, the angle makes them hard to get at, you really need to undo the flange bolts to get to it properly, or use a long steel needle adapter which is what I did. (Macnaught, to suit my K29 gun)

In the "referenced vehicle" mentioned above, i should point out a number of things which led to my drive shaft failure in darwin recently.

Firstly this shaft has done around 100,000km now flawlessly not a bad run for a DC shaft especially considering my truck sits around 3in higher then standard most of the time, Also it was not my DC ball that failed, which is non grease-able, it was the 1350 uni's on either end of the DC, which i replaced and its all good again though i suspect the movement it had might have shortened the life of the DC Ball...

Secondly the failure was caused by a lack of lubrication, i hadnt greased the unis last time i serviced the vehicle my self, and the most recently service was done by Davis performance while they fitted an alive turbo for me, it seems they also failed to grease the shafts they they told me they had, when it failed it was fairly clear none of the unis had been done. This is something i should have checked myself before i left and normally would have done the service/turbo swap myself but i just ran out of time before leaving. If this had been done an am pretty certain it would still be running fine now.

One other issue is they also fit a decat pipe for me, the close proximity of this pipe to the DC joint had me worried about the heat cooking the grease in the unis/ball, this heat plus 120-130kph of towing for several thousand KM in NT heat most likely didnt help things. This decat pipe is something i will be replacing.