Howdy Nasties! Welcome to another official Repop Review! Warning. Not 56k friendly.
Today we will be reviewing the 1978-81 Urethane Front Bumper
sold by GroundUp (SS396).
This is not the fiberglass nor the flex-glass version. I chose this product because I liked the fact that it was the same urethane material as the original car and provides a little flexibility, which fiberglass does not.
On with the review!
GroundUp Urethane Front Bumper
1978 through 1981
New Dawn Enterprises (Sold through GroundUp, Classic Industries, etc.)
Reproduction Part #
Country of Origin
Vendor Part #
OEM from a 1978 Camaro
My first impression was overwhelmingly positive. The bumper is black urethane that is clearly well machined and well designed. Donít expect fancy packaging Ė the item came wrapped in thick bubble wrap in a thick, plain cardboard box branded with GroundUpís name on it.
I tend to be a very detail-oriented person, so this product description from the GroundUp website really appealed to me:
This is an exact reproduction 1978-1981 Camaro urethane front bumper cover for all models including Z28. Painstakingly reproduced in durable high strength urethane with strict attention to detail
Based on the measurements from the Repop front bumper, I believe there will no issues mounting the bumper to the fenders and lower fender extensions.
There were no appreciable differences in the measurements, but here is a direct comparison for those who are interested. Distances were measured as a straight line from the centerpoint, hole to hole. Bear in mind the holes are bigger than they need to be to allow for adjustments.
n/a Ė I am sure this weighs within a pound or so of the OEM bumper.
Fit and Function
The images below show some measurements, which show that the mounting points are nearly identical all the way around, and certainly within acceptable tolerances.
I do want to point out one thing that could be an issue, but I will need help from you guys to confirm this.
Several years ago, I bought an upper grille that was marketed as NOS, but which I later came to suspect was a repop of some kind. On a whim, I mounted this to my GroundUp bumper and noticed there was a significant gap on either side of the grille Ė either my grille isnít wide enough or the opening on the bumper is too wide Ė or both. This really bothers me because I donít remember there being such a big gap before.
The opening for the Upper Grille on the OEM bumper is 29 ĺ inches wide, but my OEM bumper is in really rough shape and it is possible the Urethane has shrunk or been otherwise deformed, which is skewing the measurement.
* The GroundUp opening is about 30 1/8 inches wide
* The Upper grille I have (a repop of unknown origin) is 29 1/2 inches wide.
If anyone can post measurements of their Upper Grille opening, from the angle shown below Ė or post measurements of the overall width of an OEM upper grille, I would be very appreciative. I am really hoping the opening on this bumper isnít wider than it needs to be. I vaguely remember a small gap, but not Ĺ an inch on either side.
We need to measure the distance between the two points as a straight line.
(Edited. 15 May 2012)
Early on, I was worried about the fit of this piece. After having it mounted to the car, I can say definitively that it fits well. (I have a gapping issue with a fender, but it has nothing to do with the front bumper. You will likely need to expand a few of the holes to mount the bumper, but other than that, everything fit perfectly.
There is no issue with the upper or lower grille opening.
I will post more pictures tomorrow. Let me know if you have any questions!
All opinions are my own and I was not compensated for this review. I post these reviews to help forum members who must choose between OEM, NOS, or Repop items. In my case, the restoration of my í78 Camaro was delayed for years while I searched for NOS or good condition OEM items. I wasted time and money because I was influenced by a chorus of people that I didnít even know who were loudly proclaiming that ďall reproduction parts are junk.Ē I assure you, they arenít.