maybe compare the disco part number to defender ones.
I had to make notes on my blog because I always ordered wrong ones....
Making a note to myself here as it always bloody confusing
Bearmach UJ's have a partnumber RTC4132 (seems it unique to BM!)
This part is equivalent to Land Rover UJ part numbers:
GUJ103, RTC3291, GUJ116, RTC3458, 43203.
Microcat says my UJ are RTC3458
BeamEnds describe RTC3458 and RTC3191 as Propshaft UJ Short Cup' type.
Seems that the RTC3458 genuine doesn't a have a greaser nipple where as the RTC3191 does (more landrover cost saving).
The BearMach RTC4132 has the grease nipple.
My Defender 110 has 4 x RTC4132 fitted.
Update: For some reason my front propshaft hasn't got these UJ's at all ! It's got smaller ones. Will edit post with part number when I get them-- hate hate hate the things.
prop and they are all 2 15/16" (approx 2.937 decimal inch) across the cups, which corresponds to RTC3458/RTC3291 which *should* be same as bearmach's RTC4132. All
UPDATE AGAIN (15TH OCT 2009)
I am beginning to suspect that bearmach had put wrong labels on the boxes of the UJ's I had from the landroverorphanage. I have measured all mine including on spare front the UJ's I actually got supplied in the RTC4132 boxes where 3 3/16" (approx 3.187 decimal inch )across the cups which corresponds to RTC3346.
So. I will state again for my record. my Defender has 4 off RTC34132 (RTC3291) fitted included 2 of same on the spare front prop.