bluelighttaxidriver Posted August 27, 2014 Share Posted August 27, 2014 Trying to upload photos, but it says files too big...Looking at the front callipers from my '71 gt6 chassis, they appear to be slightly different shapes. Pistons appear to be identical, & threads the same. One definately has metric written on it, so obviously thinking someone has put a later one on one side. With regards to the stainless pistons and seals kit I've already ordered, am I going to have a problem...?Thanks. Quote Link to comment Share on other sites More sharing options...
Richard B Posted August 27, 2014 Share Posted August 27, 2014 The metric caliper should take a metric thread union as opposed to the imperial thread ones.I don't think there is much difference between 3/16" pipe and 4.7mm pipe.Metric calipers were fitted to later TR6's, not sure about GT6's.Personally I would have two the same though. Either metric or imperial whichever you prefer... Quote Link to comment Share on other sites More sharing options...
bluelighttaxidriver Posted August 27, 2014 Author Share Posted August 27, 2014 Unscrewed the brake pipe unions & swapped them over. Both screwed in fine to the other...Apart from subtle shape difference, they appear the same. Think I will find a matched pair though... Quote Link to comment Share on other sites More sharing options...
cook1e Posted August 27, 2014 Share Posted August 27, 2014 GT6s had three different variants of Calipers fitted.They started off with 16P imperial calipers. Then changed to 16PB imperial calipers part way through MK2 production and continued into the start of MK3 . Then part way through MK3 prodcution they changed to 16PB Metric type. The calipers all look fairly similar but of course the metric and imperial pipe fittings are different. Quote Link to comment Share on other sites More sharing options...
Clive Posted August 27, 2014 Share Posted August 27, 2014 metric calipers also use a smaller pad retaining pin................. Quote Link to comment Share on other sites More sharing options...
byakk0 Posted August 28, 2014 Share Posted August 28, 2014 Both calipers should be the PB style, you should see that stamped on it somewhere. Hopefully you ordered pistons and seals accordingly.there is also a good youtube vid for replacing them, I think its for an mg, but the method is the same. Not sure of a link at the moment Quote Link to comment Share on other sites More sharing options...
bluelighttaxidriver Posted August 28, 2014 Author Share Posted August 28, 2014 Ok thanks. Will go down to.the garage after work & write down exactly what is written on each... Quote Link to comment Share on other sites More sharing options...
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