graham crisp Posted January 11, 2016 Share Posted January 11, 2016 Hi I'm looking at changing the drums to disc on my manta a is there a conversion kit out there as I can see one for the manta b Quote Link to comment Share on other sites More sharing options...
rutts Posted January 11, 2016 Share Posted January 11, 2016 If you mean on the rear then that kits should fit. Best thing is on the a series you have an outer cable for handbrake so will fit calipers better. Astra disc and caliper conversion is best imho. Quote Link to comment Share on other sites More sharing options...
611 Posted January 12, 2016 Share Posted January 12, 2016 Sierra 4x4 caliper and BMW 316 discs. Nice easy fit with standard cable. http://www.theopelproject.com/?p=105 Andy 1 Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted January 12, 2016 Share Posted January 12, 2016 (edited) Make sure you don't buy a 4x4 vented caliper for use with vented discs if putting solid on. The carriers are different too. 4x4 vented ones are getting harder to find, the calipers can be bought new but the carriers aren't available even from Big Red. Sierra and Granada ones are the same. Nice work on the disc from a 316. What's the size? I used to use re drilled 240 mm escort mk3 ones to get the top hat spacing correct for the caliper. This is the rear setup on my 4HA using jag hubs 5x120 , evo 5 300mm vented discs and escort cosworth calipers Edited January 12, 2016 by Kevin Abbott pic Quote Link to comment Share on other sites More sharing options...
robah Posted January 12, 2016 Share Posted January 12, 2016 (edited) I have similar to what Kev as mentioned, Escort Mk3 discs and sierra 2.0Litre rear calipers fitted to a bracket welded/bolted to the rear axle. Nice to use a Frod to keep an Opel on the road Edited January 12, 2016 by robah Quote Link to comment Share on other sites More sharing options...
611 Posted January 12, 2016 Share Posted January 12, 2016 10 hours ago, Kevin Abbott said: Make sure you don't buy a 4x4 vented caliper for use with vented discs if putting solid on. The carriers are different too. 4x4 vented ones are getting harder to find, the calipers can be bought new but the carriers aren't available even from Big Red. Sierra and Granada ones are the same. Nice work on the disc from a 316. What's the size? I used to use re drilled 240 mm escort mk3 ones to get the top hat spacing correct for the caliper. This is the rear setup on my 4HA using jag hubs 5x120 , evo 5 300mm vented discs and escort cosworth calipers Cant remember what size they were, would have to measure as it was ages ago that i did it!! no re-drilling straight fit on. just had the bracket made up and bolted it on. 1 Quote Link to comment Share on other sites More sharing options...
opelmantagsi Posted January 24, 2016 Share Posted January 24, 2016 keeping the hub centric locator is an issue that needs to be considered. Quote Link to comment Share on other sites More sharing options...
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