john2502 Posted August 8, 2013 Share Posted August 8, 2013 Hello all.Just been browsing for cars, was ideally looking for one with overdrive due to the mileage I want to do with it.One has come up for sale which is non-overdrive with a 3.27 diff.My question is, how useable will this be at motorway speeds. Does anyone have this setup and have experience of motorway miles?Not sure on it as it needs a bit of work and it isn't the best time for me, but it is the right colour and MK (MK2) so thought it worth asking.Cheers in advance.John Quote Link to comment Share on other sites More sharing options...
Richard B Posted August 8, 2013 Share Posted August 8, 2013 on a Motorway it will be as usable as an overdrive GT6 with a 3.89.As a 3.89 in 4th O/D equates to 3.27.What you lose out on is flexibility of gearchanges, however withe the torque of a 2 litre...You can alsways upgrade it later. Quote Link to comment Share on other sites More sharing options...
Tim Bancroft Posted August 8, 2013 Share Posted August 8, 2013 My mk2 GT6 was exactly that when I bought the car in '83. Changed later to a 3.63:1 ratio diff and o/d, but perfectly useable with the 3.27:1.Worry more about the condition of the body structure.Good luck. Quote Link to comment Share on other sites More sharing options...
Anthony Posted August 8, 2013 Share Posted August 8, 2013 timbancroft61 wrote:......Worry more about the condition of the body structure.Good luck.This is the most valuable piece of advice anyone will ever give you regarding classic carsThat sentence is worth ££££££ Quote Link to comment Share on other sites More sharing options...
Don Cook Posted August 8, 2013 Share Posted August 8, 2013 Went all over Europe with a 3:27, its ok at motorway speeds but loses a bit in acceleration compared to overdrive with 3:89 diff. Good economy as well. Quote Link to comment Share on other sites More sharing options...
john2502 Posted August 8, 2013 Author Share Posted August 8, 2013 Cool. Cheers guys. I won't rule it out due to this then.Yeah aware the bodywork is the main thing to look out for, just didn't fancy the added price of overdrive if I found it unbearable on the motorway/dual carriageway(s).Out of interest any idea what sort of RPM it would be roughly at 70mph for a MK2 with this ratio? I know there are a few other factors but just roughly. Quote Link to comment Share on other sites More sharing options...
Anthony Posted August 8, 2013 Share Posted August 8, 2013 Here ya goYou can thank James for this......http://www.mintylamb.co.uk/gearspeed/ Quote Link to comment Share on other sites More sharing options...
GT6 M Posted August 8, 2013 Share Posted August 8, 2013 The 3.27 are total crap, would not touch them with a barge pole.get the car bowt, and I,ll give ye a GOOD 3.89 in its spot.Straight swap, can even fetch it to me shed to be changed, free of charge.noo ye cant get a better offer than that noo can ye,(whistle)(whistle)M Quote Link to comment Share on other sites More sharing options...
tiggrr1 Posted August 8, 2013 Share Posted August 8, 2013 Looking for another 3.27 as a spare then Marcus ;DI have a 3.27 diff and overdrive in my MK3 gt6, nice long legs on the motorway but acceleration suffers a bit through the gears.I did help this out by modifying my gearbox to also have overdrive on 2nd gear but that's another discussion altogether. Quote Link to comment Share on other sites More sharing options...
rotoflex Posted August 8, 2013 Share Posted August 8, 2013 Triumph fitted the 3.27 as standard for cars with overdrive in the German market, possibly for longer legs on the autobahn.http://www.canleyclassics.com/?xhtml=xhtml/diagram/gt6mkiiicentreassemblymountingdetailsoutershaftsandhub.html&xhtmlcatalogue=xhtml/catalogue/gt6mkiii.html&category=axlessuspensiondriveshaftsandwheels&xsl=diagram.xslCompletely OK for the most part, but I did destroy the original one with my car.Check your differential oil frequently! Quote Link to comment Share on other sites More sharing options...
GT6 M Posted August 8, 2013 Share Posted August 8, 2013 Looking for another 3.27 as a spare then Marcus ;DWho, Me, !!! never, wouldnt touch em, drop to bits.(whistle)(whistle)M Quote Link to comment Share on other sites More sharing options...
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