![Powerflex Track Rear Diff Front Bushes Insert - BMW F20, F21 1 Series xDrive Powerflex Track Rear Diff Front Bushes Insert - BMW F20, F21 1 Series xDrive](https://cdn11.bigcommerce.com/s-ublhigbe0h/images/stencil/300x300/products/22205/92458/resize_image__22450.1542713649__87297.1715755434.jpg?c=1)
![Powerflex Track Rear Diff Front Bushes Insert - BMW F20, F21 1 Series xDrive Powerflex Track Rear Diff Front Bushes Insert - BMW F20, F21 1 Series xDrive](https://cdn11.bigcommerce.com/s-ublhigbe0h/images/stencil/original/products/22205/92459/resize_image__66514.1542713649__09335.1715755435.jpg?c=1)
DIAGRAM REFERENCE: 27
PRODUCT NOTES:
This is a polyurethane insert that fits into and fills the voids in original bush to stabilise the diff under acceleration.
BUSH SIZE IF APPLICABLE:
NUMBER OF BUSHES IN PACK: 2
REPLACES OEM BUSH PART NUMBERS: 33316792513
Black Series
For Track and Motorsport use.
POWERFLEX Black Series bushes are manufactured using our Black 95 Shore A compound to provide maximum control of chassis geometry. They are designed for the Track, ready to Race and are engineered to be the best.