zmaster Posted March 7, 2008 Share Posted March 7, 2008 looks really good with that front bumper. I've been thinking of doing the same to my 1975 280z just the front bumper, and i am going to shave the rear Quote Link to comment Share on other sites More sharing options...
Guest S30DatsunL24 Posted April 12, 2008 Share Posted April 12, 2008 Out of curiosity, the screws on the side that hold the rear bumper onto the fender, can you get to them from inside the trunk, under the interior panels, or do you go from underneath? I tried to get to them from the wheel well but kinda ran into a dead end? Quote Link to comment Share on other sites More sharing options...
Silver Mine Motors Posted April 13, 2008 Share Posted April 13, 2008 looks really good with that front bumper. I've been thinking of doing the same to my 1975 280z just the front bumper, and i am going to shave the rear what do you mean by shave the rear bumper? how do you do this and how will it look. do you have any pictures? Quote Link to comment Share on other sites More sharing options...
deja Posted April 13, 2008 Share Posted April 13, 2008 Unfortunately you can't get to those at all. The nuts are captured in the fender itself. I made a small bracket that drops a little below my fiberglass bumper so I could use the stock nuts. Of course you could mount the bumper a little lower to cover the nuts but the 240Z mount still won't line up, you'll either have to make a new bracket or use one of those nut inserts in your fender. Out of curiosity, the screws on the side that hold the rear bumper onto the fender, can you get to them from inside the trunk, under the interior panels, or do you go from underneath? I tried to get to them from the wheel well but kinda ran into a dead end? Quote Link to comment Share on other sites More sharing options...
madolive3 Posted May 14, 2008 Share Posted May 14, 2008 On the Front Bumper,I used the 77 mounts. I removed the pistons from them and cut about 1.5 inches off the end of the tubes. I welded plates on the ends of the empty piston tubes and drilled holes for the Bumper mount bolts. On the rear, I removed the whole piston assembly and sealed the hole just as Dave did. I welded my mounts directly to the tow hooks. The Bumper ends, I fabbed some plates and welded them to the bolt bracket inside the ends themselves. I cut a notch on the bottom of the bumper ends so I can tighten the mounting bolt into the existing holes on the 77. If anyone wants pics of this e-mail me, I'll be glad to send them....madolive3@yahoo.com Quote Link to comment Share on other sites More sharing options...
aziza z Posted May 14, 2008 Share Posted May 14, 2008 what do you mean by shave the rear bumper? how do you do this and how will it look. do you have any pictures? Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted April 18, 2009 Author Share Posted April 18, 2009 Finally, got around to making covers for the unsightly bumper shock holes. I had some sheet stainless laying around, so I busted out the tin snips and 3M VHB tape. Cheap, easy, and looks better than holes in the a$$. Quote Link to comment Share on other sites More sharing options...
jnonni99 Posted May 3, 2009 Share Posted May 3, 2009 Where did you find the rubber strips you used to cover up the holes? I have the same bumper conversion and looking to do the same. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted May 3, 2009 Author Share Posted May 3, 2009 I think there is a link to the rubber strips in this thread somewhere. Let's check. Yup. Post #8 Quote Link to comment Share on other sites More sharing options...
jnonni99 Posted May 4, 2009 Share Posted May 4, 2009 Has the black rubber trim ever peeled back? Was it big enough to cover the larger holes for the bumper bars(I removed them)? Thanks Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted May 4, 2009 Author Share Posted May 4, 2009 It hasn't peeled since the date on the threads. You can see how far it covers in the photos. It wraps around the front more than the back. I think the website that sells them, lists the dimensions. Quote Link to comment Share on other sites More sharing options...
inmocean Posted November 2, 2009 Share Posted November 2, 2009 thanks for all the tips guys...used a set of 71 bumpers on my 78 280z. my front bumper is almost done, i built a new lower grille out of the original 78 lower and a spare 240 grille, looks awesome...i installed the rear with the painted "fin" in place, it just fit into place too well for me to want to cut it off...getting at the gas tank filler to drop the rear shocks was definately the worst part, and i still haven't resolved the corner fasteners on the rear, but it's getting there, will repaint grilles and replace the rubber strips before the car rolls out(waiting on radiator and exhaust to finish engine rebuild)...thanks again! Quote Link to comment Share on other sites More sharing options...
Guest Gr8White Posted November 2, 2009 Share Posted November 2, 2009 i built a new lower grille out of the original 78 lower and a spare 240 grille, looks awesome... I did the same thing pretty much, but used an early 240 style MSA type 1 ducted airdam/fiberglass bumper and clear 240Z turn signals, using the 240Z grill and robbing parts from my 78 grill to make a grill that filled the entire open area to the top of the airdam. Looks like it came with the car and you would never know it wasn't part of the original car (other than aftermarket air dam). I fabbed up my own brackets, very sturdy. Bumper brackets were a piece of cake too. I have dimensions and a drawing of the fiberglass bumper bracket if anyone would like it. Quote Link to comment Share on other sites More sharing options...
misterZ Posted November 2, 2009 Share Posted November 2, 2009 ...i installed the rear with the painted "fin" in place, it just fit into place too well for me to want to cut it off... The 'fin' rear bumper valance needs to go; looks better without it (IMO). Quote Link to comment Share on other sites More sharing options...
inmocean Posted November 22, 2009 Share Posted November 22, 2009 decided it all had to go...no rear bumper! filling holes and fairing it smooth! Quote Link to comment Share on other sites More sharing options...
inmocean Posted November 22, 2009 Share Posted November 22, 2009 sorry, no other pics... "Does the bumper sit exactly where it's suppose to? Or is it suppose to be where the fin is?" -since you have to make or modify brackets for the bumpers, there really isn't a set spot for them to go...i found on my car that the location of the bumper didn't change much up or down with the fin gone, but it did draw tighter to the body. with the fin gone it left a row of spot-weld holes very visible, and i pulled the tow-hooks which left those indentions...you could move the bumper up, covering the spot welds, but you'd leave the indentions showing...and something has to be done to keep those spot-welds from turning into rust issues anyway...to make it right there will be body work in one degree or another. i'd still say go for it, its a fun project that helps the car in a lot of ways, with a little rust-treatment the body work could wait... in my case i feel its time better spent to fair the whole panel, the cars have very clean lines and the shaved rear(insert your own joke-no pun intended) fits well with the rest of the car. at what price beauty? Quote Link to comment Share on other sites More sharing options...
datsun_280z Posted February 27, 2012 Share Posted February 27, 2012 (edited) Those conversions look great, i want to do the same. Any tips on taking off the fin above the stock 280z rear bumper? Did you just grind it off? Thanks, Colin Edited February 27, 2012 by datsun_280z Quote Link to comment Share on other sites More sharing options...
nullbound Posted February 27, 2012 Share Posted February 27, 2012 Those conversions look great, i want to do the same. Any tips on taking off the fin above the stock 280z rear bumper? Did you just grind it off? Thanks, Colin Drill out the spot welds. Quote Link to comment Share on other sites More sharing options...
Wedge Posted February 28, 2012 Share Posted February 28, 2012 Sawzall the bracket then drill spot then grind then weld ...hehe Quote Link to comment Share on other sites More sharing options...
8DC Posted April 20, 2012 Share Posted April 20, 2012 (edited) How much of the rear holes are covered by the 240 bumper? Because if they still need to be filled, you may as well go for a shaved rear look in my opinion... Ordered a set of fiberglass bumpers from eBay seller "paezfs", who says that his mount up without special brackets (bolts to the stock holes in the sides and under the sugar scoops). He produces them to order. I also came across a post on another forum by someone who claims to know him and says that he is the supplier to MSA. Does anyone have pics of his fiberglass rear bumper on their car so that I can see how noticeable the holes are and can decide if I need to get them filled or not? Edited April 20, 2012 by 8DC Quote Link to comment Share on other sites More sharing options...
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