MALIBU Fiberglass bumpers

5

500/600

Greasemonkey
Nov 17, 2018
145
63
I bought the ‘el cheapo’ fiberglass bumpers sold on ebay. Although I wouldn’t exactly call them cheap in dollars language. They fit decent, are very flimsy, look great (to me) when installed, install easy enough, and dang they are light weight!

Here is the weight difference on a very good medical scale.

Two stock 1980 Malibu bumpers with bumper guards and no belt trim along with four shock style mounts weigh in at 115 pounds.

Two glass bumpers with 1-1/2” roll bar tubing frame braces front and rear weigh in at 27 pounds.

This weight loss will offset some of what I added in the name of performance. Rear sway bar, heavier front sway bar, full 3” exhaust, and maybe a little more.

Here are pics of finished rear bumper and rear frame brace.

D3FDABA7-EDB7-4176-8A1E-33D20B481E09.jpeg
571EF6E4-095E-465B-9BC9-44CEC4A25329.jpeg
 
Longroof79

Longroof79

Rocket Powered Basset Hound
Oct 14, 2008
10,056
113
Gainesville, Fl
Looks good, man. Adding the bracing between the bumper mounting flanges was definitely a step in the right direction. I guess you actually eliminate the reinforcement behind the bumper.
 
  • Like
Reactions: 500/600 and Rktpwrd
superbon54

superbon54

Greasemonkey
Apr 15, 2014
176
63
Looking sharp, I like the tucked bumper look on the Malibu’s. I bought a set from Lauren before they closed up..... we’ll see next year how they fit.
 
565bbchevy

565bbchevy

Geezer
Aug 8, 2011
6,363
113
Michigan
I think the reinforcement bar should have spikes facing rearward that will be hidden by the bumper.
 
joesregalproject

joesregalproject

Comic Book Super Hero
Nov 4, 2012
3,351
113
Pittsburgh, PA
Looks great, I love those fiberglass bumpers for the Malibus.
 
jlcustomz

jlcustomz

G-Body Guru
Nov 22, 2011
666
63
I'd think that the rollbars with the way they mount would also do a little more to stiffen frame from twist than the standard bumpers through the shock mounts would.
If you feel they are too flimsy, you could add material to the insides to further stiffen ,whether it be regular glass mat with polyester or epoxy resin or one of the lower cost carbon fiber mat fabrics & epoxy.
 
5

500/600

Greasemonkey
Nov 17, 2018
145
63
I'd think that the rollbars with the way they mount would also do a little more to stiffen frame from twist than the standard bumpers through the shock mounts would.
If you feel they are too flimsy, you could add material to the insides to further stiffen ,whether it be regular glass mat with polyester or epoxy resin or one of the lower cost carbon fiber mat fabrics & epoxy.
If I had one worry it would be the air coming under the car and in behind the rear bumper. I will likely add a couple of straps or braces between the bar and the bottom of the bumper for peace of mind.
 
  • Like
Reactions: Longroof79
D

Doug Chahoy

Royal Smart Person
Nov 21, 2016
1,109
113
1/2 inch copper tubing with the ends flattened and drilled works great for that. I did it on my Choo Choo nose. Light, strong for that purpose, and won’t rust.
 
Thread starter Similar threads Forum Replies Date
S Body / Trim / Paint / Glass 8

Please support GBodyForum Sponsors

Classic Truck ConsolesDixie Restoration DepotMike's MontesP-S-TSouthside Machine PerformanceUMI Performance

contact[email protected]for info on becoming a sponsor