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Detroit Muscle Technologies Mopar B Body 69 Roadrunner Quarter Extension Gaskets (pair) BRR6969QE01

Detroit Muscle Technologies Mopar B Body 69 Roadrunner Quarter Extension Gaskets (pair) BRR6969QE01
Detroit Muscle Technologies Mopar B Body 69 Roadrunner Quarter Extension Gaskets (pair) BRR6969QE01
$25.99 pr
NEWARRIVING SOONEstimated Ship Date 03/23/2026 (If Ordered Today)
Model: 3928224
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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The thin black plastic "shim" the goes between the rear quarter panel and the housing that surrounds part of the taillight - for a 1969 Plymouth Road Runner, GTX or Satellite. Also included are 6 new, exact reproduction push pins used to hold the qtr extension gasket to the bezel. Can be used on cars that originally had qtr extension gaskets (very few 69's actually had them) and on cars that didn't have them and just used black caulk. The holes for the pushpins are in all the 69 RR qtr extensions to allow their use.

Note: See picture of RARE original gasket (to the left) and our reproduction installed on the quarter panel extension (NOT INCLUDED).

Materials
.035" black plastic. A functional equivilent to the molded OEM piece.
Include (6) OEM style attaching clips. 

About Detroit Muscle Technologies

In 1977, at 15, my first car was a 70 Barracuda I bought for $600 from my dad's co-worker at Chrysler Huber Ave Foundry. Tawny gold, 318, hub caps. Before I could "legally" drive it it had headers and a 4bbl. Had a couple other Mopars after this as a young man.

25 years later it was time to get another Mopar. After looking for 2 years I found a 1971 B5 blue Challenger right here in Michigan. 318 and hubcaps again. This time it cost over 10x as much, $6500. Didn't take long to add wheels, new leaf springs, 340 6bbl, etc. A year or two later I decided to completely redo the car. Had it media blasted and painted B5 blue again BUT when I went to put it back together I found  there were no good body gaskets sets for Mopars. The gasket making journey began.

In 2004 I first made a kit to redo my Non A/C heater box using a laser engraver/cutter that I had for another side business. I showed the guys on Moparts and quickly had a few orders. I obviously made all the gaskets for my car because I had all the parts for templates. Many parts fit the other E body models so I soon had all the E body gaskets, then more body style, then more heater box kits and the rest is history.

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years
Plymouth GTX 1969 - 1971
Plymouth Road Runner 1969 - 1975
Plymouth Satellite 1969 - 1974

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Detroit Muscle Technologies Mopar B Body 69 Roadrunner Quarter Extension Gaskets (pair) BRR6969QE01: