Fair point tony that's the answer I was after....is there a demand....no....there is an issue with the driveshaft no....we run equal lengths on both sides of our car with a 20mm spacer on the o/s....there are several levels of beam blue, red and i think black....I realise the square beam bolts up differently...i have never come across a grp'n' diff mount....that would be a standardish item...the grp'a' rear diff mount uses the bush arrangement similar to the proper gearbox mount or a solid back plate mounted through bosses onto the diff plate attached to the cage....ive built quite a few grp'n' and grp'a' cars...and wrc escorts.....

I will sell the beam I have....

Best regards

Ian