TrickyBlue Posted July 5, 2022 Share Posted July 5, 2022 This is going to sound silly but, I have JDM sized plates for the back of my Supra. The bumper has the hole in the bumper due to being an import. Basically, how do i line up the number plates to be drilled so they are perfectly central? My ocd would not allow me to have them offset at all Oh, the previous plate was stuck on with about 500 sticky pads so i cant use that as a template. Quote Link to comment Share on other sites More sharing options...
mc92 Posted July 5, 2022 Share Posted July 5, 2022 With a ruler and some patience Get the distance between the two mounting bolt holes, find the centreline of the new plate and work from there. Maybe you can make a template out of cardboard for practice. Use a nice sharp drill bit or you can make a mess of the plastic. From memory the bolt holes are m6, I got some stainless low-profile allen-head screws for them so they don't get rusted in. Quote Link to comment Share on other sites More sharing options...
evinX Posted July 7, 2022 Share Posted July 7, 2022 Trace the plate on cardboard and cut it out. Do your measuring and test holes. If it dont work out. Start again with cardboard Quote Link to comment Share on other sites More sharing options...
TrickyBlue Posted July 7, 2022 Author Share Posted July 7, 2022 Yeah guess that's all i can do really, may require more patience than i have I did try making a template out of cardboard, it ended up with about 20 holes in it due to me trying to get it mm perfect 1 Quote Link to comment Share on other sites More sharing options...
evinX Posted July 7, 2022 Share Posted July 7, 2022 (edited) 26 minutes ago, TrickyBlue said: Yeah guess that's all i can do really, may require more patience than i have I did try making a template out of cardboard, it ended up with about 20 holes in it due to me trying to get it mm perfect Dont need to be MM perfect. Say your using those yellow plastic m6 bolts for the rear. The heads are quite big. So use a 6.5mm/7mm drill bit as it will give slight room to shuffle the plate around and the head will still cover the hole Edited July 7, 2022 by evinX (see edit history) Quote Link to comment Share on other sites More sharing options...
rider Posted July 8, 2022 Share Posted July 8, 2022 I had my rear plate stuck on for years and then finally, after about 18 years, decided I should bolt the plate onto the bracket behind. Just measure centre hole on the M6 threads to centre hole and halve it. Halve the width of the number plate and then you have your plumb line to go your half mount width either side. You then just need to measure the centre of the M6 bolt hole to the top cut on the bumper (the plate only overlaps by a few mm so I did that distance down plus 4mm. you then have your hole locations ready to drill. I'm bad a getting more than one hole to line up but my number plate bolted in fine. Quote Link to comment Share on other sites More sharing options...
Wishieftrottle Posted July 9, 2022 Share Posted July 9, 2022 Just buy frame which is a few mm larger than the hole and centre it. Mine looks like this: Quote Link to comment Share on other sites More sharing options...
m12aak Posted July 9, 2022 Share Posted July 9, 2022 On a 'standard' 13x7in rear plate, my measurements were 60mm inwards from each side and 28mm down from the top for the centre of the hole. I drilled 8mm holes so you have wiggle room to make it perfectly fit and fill the hole (used flanged M6 bolts). Using a UK spec front plate mount (no lip round the edge like the jap ones), with a standard size UK plate it was 155mm in from each side and 11mm down from the top, using 8mm holes again to get the fit perfect. 2 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.