ShawnPreece Posted May 24, 2018 Share Posted May 24, 2018 Hi all, I have been asked by a friend if a 1994 JZA80 JDM auto mk4 Supra would have M9 torque converter bolts? does anyone here know? Quote Link to comment Share on other sites More sharing options...
Big Mark Posted May 24, 2018 Share Posted May 24, 2018 Does M9 even exist? Surely they'll be M8 or possibly M10 Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted May 24, 2018 Author Share Posted May 24, 2018 Does M9 even exist? Surely they'll be M8 or possibly M10 apparently they do which is why my mate was asking but id not heard of it so thought id ask to see on here for him Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 24, 2018 Share Posted May 24, 2018 (edited) https://www.ebay.co.uk/itm/52-Blade-Metric-Imperial-System-Screw-Pitch-55-60-Degree-Thread-Measuring-Gauge/401459663207?epid=24011329749&hash=item5d78dc5167 https://www.ebay.co.uk/itm/150mm-6inch-Dial-Caliper-Vernier-Caliper-4Way-Gauge-Micrometer-0-1mm/112374537526?hash=item1a2a0b5d36:g:NFUAAOSw5VFWOtQ7 https://www.fullerfasteners.com/tech/basic-metric-thread-chart-m1-m100-2/ Edited May 24, 2018 by Chris Wilson (see edit history) Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted May 24, 2018 Author Share Posted May 24, 2018 https://www.ebay.co.uk/itm/52-Blade-Metric-Imperial-System-Screw-Pitch-55-60-Degree-Thread-Measuring-Gauge/401459663207?epid=24011329749&hash=item5d78dc5167 https://www.ebay.co.uk/itm/150mm-6inch-Dial-Caliper-Vernier-Caliper-4Way-Gauge-Micrometer-0-1mm/112374537526?hash=item1a2a0b5d36:g:NFUAAOSw5VFWOtQ7 Cheers mate I would measure it if I could but don't have one out to measure, a friend of mine is big into building his off roaders and is looking at options for the one he's building atm so asked me the question as it could be a possible option for him to buy Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 24, 2018 Share Posted May 24, 2018 If I remember I'll try an M10 fine in a spare 2JZ-GTE TC I have in the workshop. Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted May 24, 2018 Author Share Posted May 24, 2018 If I remember I'll try an M10 fine in a spare 2JZ-GTE TC I have in the workshop. Thankyou mate Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 28, 2018 Share Posted May 28, 2018 They are M10 x 1.5mm pitch, and you need bolts with the shortest grip length (shoulder) you can find. The shoulder needs to protrude through the flex plate and just into the countersunk part in the tapped, welded on blocks on the TC. Too long a shoulder and the shoulder will bottom out before they are clamping the flex plate. Too short and there's a risk of the reduced thread size allowing flex plate to TC movement, although in theory the clamping is done by tension and friction. It is very good practice to use a shouldered bolt, as per the OE ones. I wrongly remembered them as metric fine, they are not, just the standard M10 coarse. HTH. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted May 28, 2018 Share Posted May 28, 2018 Ive got about 3 sets of TC bolts if you need some mate Quote Link to comment Share on other sites More sharing options...
David P Posted May 29, 2018 Share Posted May 29, 2018 Note that GTE torque converter bolts are a stronger spec than GE. GTE bolts have a no. 11 on the head, GE bolts have no markings. (GTE bolts were "sometimes" used for GE) Use aftermarket bolts at your peril. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 29, 2018 Share Posted May 29, 2018 The loadings on the TC to flex plate bolts are quite mild due to the large PCD of the converter bolt blocks. Especially when compared to the flywheel or flex plate to crank bolt loadings. But given the need for a short grip length and overall short bolt, buying OE ones is probably easiest. Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted June 7, 2018 Author Share Posted June 7, 2018 Thats awesome thankyou very much for your response guys Quote Link to comment Share on other sites More sharing options...
SupraTRD_MK4 Posted January 24, 2019 Share Posted January 24, 2019 bumping this as I am lost and cant find mine. So does Toyota still stock these? Heard last that they don't but that wasn't from the agents itself. I also need to order the two thrust plates that mount between the TC, crank and flex plate Quote Link to comment Share on other sites More sharing options...
David P Posted January 24, 2019 Share Posted January 24, 2019 (edited) 2JGTE bolts are 10mm, 2JGE bolts are 9mm. The thrust plates are the same for 1JGE, 1JGTE, 2JGE, 2JGTE & 1UZFE. 1JGE, 1JGTE, 2JGE & 1UZFE all have the 9mm bolts. This info might help you pick up some pre-loved components and save you a few Krugerrand? Edited January 24, 2019 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 24, 2019 Share Posted January 24, 2019 Maybe ARP do the converter to flex plate bolts if Toyota no longer stock them? At the worst you could buy some correct grip length bolts from an engineering merchants and turn the heads thinner. Quote Link to comment Share on other sites More sharing options...
SupraTRD_MK4 Posted January 25, 2019 Share Posted January 25, 2019 Thank you Sir David. I have a thrust plate from a lexus motor I believe as its an auto box from there as well. Sadly the flex plate on that box does not line up with my GTE TC and so the thrust plate has the same issue. Hence I need to buy all those pieces again but I do have the correct GTE flex plate now. Thanks for the dimensions. Chris, I will have a look and see. Maybe it will be better to just ask around local before I take the plunge as what I see, most people just sell their auto boxes off the Aristo GTEs but for $200 plus. Thanks for your advice as well Quote Link to comment Share on other sites More sharing options...
David P Posted January 25, 2019 Share Posted January 25, 2019 I wasn't sure if you were after GE or GTE components. Now that I understand you are after GTE, note that the flex-plate to crank bolts are the same size for both GE and GTE, however, the OE GTE bolts are a stronger spec. These stronger spec bolts are identified by a number "11" cast into the head. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 25, 2019 Share Posted January 25, 2019 I wasn't sure if you were after GE or GTE components. Now that I understand you are after GTE, note that the flex-plate to crank bolts are the same size for both GE and GTE, however, the OE GTE bolts are a stronger spec. These stronger spec bolts are identified by a number "11" cast into the head. Come come Mr. P *forged* into the head, not cast. Bolts are forged.... Quote Link to comment Share on other sites More sharing options...
David P Posted January 25, 2019 Share Posted January 25, 2019 Come come Mr. P *forged* into the head, not cast. Bolts are forged.... Excuse me forgedding. Quote Link to comment Share on other sites More sharing options...
SupraTRD_MK4 Posted January 26, 2019 Share Posted January 26, 2019 Thank you kind Sir. Thrust plates at Mr T brand new are roughly $90. Insane Quote Link to comment Share on other sites More sharing options...
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