Hi Steve
don't make the mistake I did, I purchased a pair of pattern ones (britpart i think) from JSF, and to be fair they did warn me they were not good but I was going to sell the old girl at the time. Now some 6 months later they need doing again. I will fit genuine this time as the originals lasted 109k miles and the new ones lasted 4k.
Not too badder job however getting the UJs of the VCU can be a little testing, I had to dismantle one UJ to use a set of hydraulic pullers on it. Still should come apart easily this time.
The great thing is you can still drive a freeby with the rear prop removed, which means you can take your time.
If you want to chat Mutz has my number
Regards
Tony