$450
Suit factory 28 spline axles.
$550
Suit custom axles.
$675
Helical LSD (may require pinion mods with early gearsets).
$88
Mini spool which can be fitted to an open carrier.
$250
Open 3-series carrier pre-fitted with mini spool ready to fit.
$100
Standard 3-series open carrier in excellent condition.
$350
Full spool to suit 3 series gearset in either 28 or 31 spline.