A modular CRFM upper bracket assembly providing a universal carrier operatively associating an isolator to a bracket. The isolator may be over-molded with the universal carrier or press-fit thereto. The bracket provides a carrier opening with interior threading, while universal carrier provides exterior threading dimensioned and adapted to engage the interior threading, whereby the elevation of the universal carrier, and thus isolator, relative to the bracket is adjustable through selective engagement of the threading. Thereby, the gap between the top of a vibratory object to be isolated and the bottom of isolator is also adjustable, which is advantageous for accommodating different frame tolerance variations and meeting system vibrational requirements.