Help! R32 Gts4 (Gtr) Front Diff Binding Up

[s213b]

Just put a freshly built stagea rb25det into my r32 gts4.

I USED THE DIFF FROM MY RB20 - to match my rear diff.

Drove it around with no issues for a few weeks. Front torque gauge acting as it should etc. However had issues with car being stuck in rwd from early on but this was rectified.

Car then had head issues (similar to the idiot who tuned it) and my fresh motor then needed a head rebuilt after 350k's. Motor stayed in the car, head came off. Installed a genuine greddy intake manifold and 10:1 Comp instead of the 8.5:1 it had originally.

After the head rebuild the car runs awesome, however my altessa system comes off after 2-3 minutes of driving (4wd light ON) and it feels like one of the diffs (assuming front) is binding up bad. The torque gauge saw 50% when just driving up a driveway. Diff binds even when pushing the car with keys out.

Anyone had diff binding issues on a 32 or know what my issue could be?

Cheers