J&G Haddon Transmissions
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There are no technicians listed in Gloucester itself yet; the 24 below are the closest options, from towns including Philadelphia (4, 16 mi), Sewell (2, 4 mi) and Woodbury (2, 7 mi).
1 open 24/7 · 10 open weekends · 19 rated 4.5+ · 3 show a license

The 24 technicians on this page are rated from 4.2 to 5.0 across 5,134 reviews; 23 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (90%), quality (85%) and value (68%). 1 is open around the clock; 10 are open on Saturdays and 1 on Sundays. The services the technicians on this page list most often on their websites are brake repair (7), oil change (5), alignment (3), brakes (3) and check engine light (3). 3 show a license on their websites; 10 list staff certifications (ASE) and 9 have a BBB rating of A or A+. 21 have ten or more years of experience, the longest 89 years. 1 offers emergency or roadside call-outs; 1 gives free estimates and 8 are family- or locally-owned. We have a website on file for 23 of the technicians on this page; 22 publish a contact page; 10 list a public email and 5 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Data verified October 6, 2026
Listed for drivers in and around Gloucester, NJ, these 24 shops repair, rebuild and replace engines. What each one says about machine work, warranty terms and the engines it supplies comes from its own website; ratings and quotes come from public reviews.
3 of the 24 shops show a license on their websites. For engine work, ask something more specific as well: which machine shop they use, and how many of your engine family they have built.