VERY much doubt your rear axle bush is in two parts.
2 part wishbone ones are a doddle.
Single piece rear ones however, are not..
I tried
G-clamp
G clamp with bit of 4x4 block to evenly distribute pressure
Vice
Vice with above mentioned block
In the end i had to admit defeat and a 10 ton press pushed them straight in.
Mine were however cheap £G25 rear bushes.
Just be advised that you may struggle.
"Replaces OEM Part No: 1J0501541C. . The rear axle of your car is obviously a very important part and needs to be attached to the car using precision engineered parts. SuperPro's 20 years of industry leading experience has allowed them to come up with a solution. This bush kit maintains the alignment of the rear axle under the pressures of hard corning giving you a much improved and sharper chassis. This kit includes 4 bushes, 2 tubes and assembly grease. Also includes SuperPro's unrivalled 3 Year/36,000 Mile warranty. These bushes are also available in KIT5133K - front and rear suspension bush kit and KIT5133K-RG - running gear kit."
4 bushes, 2 tubes.... According to the skods forums easy to install.
What 2 part bushes (superpro as stated I used) are there for the wishbones? All mine were one solid piece which was pressed in then the tube pressed in after....!