I like the smooth look of the 91-92 Formula bumpers. It costs to much to do that, so I want to fill in the areas where the bumperetes were to make the rear bumper look smooth.

What is the best way to fill it smooth?



I was thinking that I could get a scrap bumper and use the urathane to fill the gap and then use fiberglass to smoothen it out. Will this work?

 

with fiberglass anything is possible

 

My main concern is how long would it last if I use all fiberglass?

 

remember that the bumper isn't fiberglass , fiberglassing something to urethane isn't easy :shrug:

honestly I wouldnt' bother, it might be cheap in the beginning but what if you have to re-do it every year , you'll get sick of that real fast

I say do it once and do it right even if it costs arm and a leg , save up some money 'till you can afford it

 

btw you wont' smooth it out with fiberglass , you would have to use bondo like material (I don't think you can use actual bondo as that probably wouldn't work too well on the urethane bumper).

you could cut away the indentations from the back , fiberglass over the hole from the back of it , make it strong with a few glass coats and then "bondo" over it from the outside to smooth it out and of course paint afterwards

wish I could provide some details but all I can tell you is that I would make SURE the stuff will stick for al ong time , otherwise it's a waste of time.

 

it would be a better idea to get an 91/92 bumper from the junk yard. it should bolt right up.

 

Yes I believe getting a bumber from a junkyard would be the a cheap and easy way to get a smooth look.

 

I'd have to agree w/ the previous posts, no need to re-invent the wheel

 

I would need the impact absorber bar too if I did the 91-92 conversion. Problem is, I can't find any used 91-92 Firebird/Formula bumpers. I would like to change my bumper as soon as possible.



I'm not going to lie, I am a very lazy person and I avoid hard work whenever possible. Bondoing and Fiberglassing sounds a bit more involved than I thought.


I guess I will just have to try harder to find the rear bumper and impact absorber bar.

 

Yeah devianb, by the time you buy a donor bumper cover to get the plastic (since you missed out on my freebie) and purchase all the materials to do this, it's going to cost as much as a used 91-92 bumper cover. Plus, it'll probably crack eventually and **** you off.

I dig the idea though. The reason I was giving away my 83 bumper was to put the 91 Formula bumper on. Now my car is yet another color...

 

Get an 82-84 bumper. It has no ground effects molded on it, so it would line up with your quarter panels just fine.

 

Theres an aftermarket parts supplier in Warren, MI- Trojan Automotive, or Sherman and Associates in Washington, MI that should have anything you need for a good price. Give them a try before you try your patience.