Thread: Puma Transfer case

The shifting mechanism will prevent direct swap in even if the ratios input and outputs were all to be a match
Let me guess its leaking from the intermediate shaft o-ring?

Cases will interchange but you will have to swap the high low shifter housing and the rear output housing as you have no defender speedo transducer in the d2. And difflock wiring is totally different...

The shifting mechanism may be different but not sure. I recently put a disco box into my defender td5 it was a 36D LT230, in the td5 the difflock and hi/low range switch was different but it doesn't matter if they're not connected, one brings the diff lock light on and the other tells the ecu that you're in low range. The disco box had an identical speedo transducer as the defender one, i just swapped out the speedo drive gears (kept the defender one)

Originally Posted by roverrescue

The shifting mechanism will prevent direct swap in even if the ratios input and outputs were all to be a match
Let me guess its leaking from the intermediate shaft o-ring?

Yes the shaft is badly worn around the o ring and this has worn into the shaft hole in the case, so the case needs sleeving and a new shaft as well...saw the pictures today.
I also have 2 more transfer cases from 98 disco and 87 rangie that I could use as well if they would fit.

So If I wasn't worried about lights or speedo or being able to get into low range, just leave it in high range so it could be driven until the puma transfer case could be fixed over time it would work temporarily?...

Originally Posted by Bradtot

So If I wasn't worried about lights or speedo or being able to get into low range, just leave it in high range so it could be driven until the puma transfer case could be fixed over time it would work temporarily?...

Unfortunately the puma needs a speedo input. It'll run though just not very well.

You might be able to pull the speedo transducer off the puma case and put it into the disco case so you'll have a speedo, the rest of the functions you could live without for a while.

Originally Posted by hpal

You might be able to pull the speedo transducer off the puma case and put it into the disco case so you'll have a speedo, the rest of the functions you could live without for a while.

...there is no hole for the transducer nor drive gear internally as the disco has speed signal through SLABS. This means you'd have to also swap the rear output housing over. This is where the problems begin as the preload for the bearings on the main output 'cluster" is applied using shim spacers behind the bearing cup in the frontoutput housing and any variance in tolerance from a different rear housing being fitted can cause that to be seriously out of spec.