David P Posted April 7, 2014 Share Posted April 7, 2014 T.T. Diff Prop-Flange This is the most frustrating component to source for a Hybrid conversion and folks that break T.T. diffs throw them away. I have a Wanted Ad permanently running to try and unearth these Rocking-Horse droppings for Hybrid builds. http://www.mkivsupra.net/vbb/group.php?discussionid=213&do=discuss If you hear of a T.T. diff that's on it's way out, please save it's flange. Recycle here http://www.mkivsupra.net/vbb/group.php?discussionid=86&do=discuss Thank you. Link to comment Share on other sites More sharing options...
David P Posted May 14, 2014 Author Share Posted May 14, 2014 T.T. diff flange part number is 41204-30040, £71.06 + Vat from Mr.T. Related thread here. http://www.mkivsupra.net/vbb/showthread.php?307719-TT-Auto-diff-flange A pretty shiny new one (Pic bluesonic94 ) Link to comment Share on other sites More sharing options...
David P Posted June 25, 2014 Author Share Posted June 25, 2014 T.T. flange N/A flange side by side (Pic bluesonic94 ) T.T. flange N/A flange face to face (Pic bluesonic94 ) Pic of T.T. size 'B' donut showing measurement of T.T. diff flange T.T. diff flange with vernier calipers Link to comment Share on other sites More sharing options...
David P Posted April 26, 2017 Author Share Posted April 26, 2017 Prop-flange & drive-shaft oil-seals. Prop-flange T90311-44005 £23.56 + VAT. (Price & pic bluesonic94 ) Drive-shaft oil-seal. £23.50 + VAT. (Price & pic bluesonic94 ) Link to comment Share on other sites More sharing options...
David P Posted April 26, 2017 Author Share Posted April 26, 2017 How-to Swap a Prop-Flange Tip: Do this job with differential fitted to the car. Mark across the flange-nut and pinion tail-shaft with a scribe. (Pics bluesonic94) Link to comment Share on other sites More sharing options...
David P Posted April 26, 2017 Author Share Posted April 26, 2017 With a small cold-chisel and hammer, carefully open the nut-lock as has been done here, take care not to split it (Pic bluesonic94) With the handbrake on, use a 35mm spanner and undo the nut. Tip: A deep-socket and wrecking-bar or air-spanner is fine to undo it, however, a swan-neck ring-spanner will allow you to see the marks during reassembly. Remove flange, fitting a new oil seal is good idea, fit alternative flange and steadily do the nut back up to EXACTLY where it was before. Re-lock the nut. Link to comment Share on other sites More sharing options...
David P Posted May 24, 2017 Author Share Posted May 24, 2017 There are crush-washers beneath this assembly and it is ESSENTIAL these are not compressed any more. Note: The nut may be tight to undo, don't let this mislead you to over-tighten during reassembly. Get this simple little job wrong and you WILL kill the diff. Tip: To prevent oil leaking past the splines, clean both male and female with brake cleaner and assemble with RTV on the female splines only. Link to comment Share on other sites More sharing options...
David P Posted May 24, 2017 Author Share Posted May 24, 2017 T.T. diff prop-flange and Aristo transmission prop-flange are both size 'B' donut flanges. These flanges have different part numbers, yet are suspiciously similar components? If you ever get the chance to remember to think to find out, please let us know? T.T. diff flange: 41204 FLANGE SUB-ASSY, REAR DRIVE PINION COMPANION, REAR 41204-14010 Aristo transmission flange: 34780E YOKE ASSY, FLANGE 34780-30010 Link to comment Share on other sites More sharing options...
David P Posted May 28, 2017 Author Share Posted May 28, 2017 Aristo transmission prop-flanges may be easier to find than T.T. diff prop-flanges? Why here. http://www.mkivsupra.net/vbb/group.php?discussionid=223&do=discuss Link to comment Share on other sites More sharing options...
David P Posted February 24, 2021 Author Share Posted February 24, 2021 TT auto transmission prop flange component part numbers. 34780E YOKE ASSY, FLANGE (FOR AUTOMATIC TRANSMISSION) 34780-140201 34780G NUT (FOR ATM FRANGE YOKE) 90179-220181 34780H WASHER, PLATE (FOR ATM FLANGE YOKE) 90201-30005 Link to comment Share on other sites More sharing options...
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