Customer Reviews

Love the quality and fitment

nicely made fitted right on to the transmission looks amazing

Great service that kit is awesome very well made just what I needed

Your Speed Gems adapter fit perfectly into my Ford Mustang II V6 4-speed bell. Beautifully machined, drilled, threaded-- it's precisely what I had to have to mate my engine to the new Tremec T5.

I found out about Speed Gems by chance and I am pleased I did.I knew which kit I required but they were quick to communicate and explain the timeframe required for manufacture and answer my questions. I received the kit in good time considering I am in another country and all components were there and quality is excellent. I have tried all the kit components with my engine and gearbox and everything went together perfectly. Thanks to Speed Gems team.

I’ve used a lot of adapter kits for various engines and transmissions in the past and this is definitely one of the smoothest installs I’ve come across.

Although I have yet to install the kit (waiting on trans) the kit looks very well put together, packaging was great and the parts arrived safe.looks like a fairly easy install process. I’ll update as soon as I install.

Impressed by knowledge and courtesy of staff. Received shipment in very little time. Still waiting on arrival of transmission. Will update later.

great customer service parts are really nice

Great high quality kit! I highly recommend Speed Gems kits

Fits great. The people are great when I called and talked to them.

Amazing products works well

I was swapping a Turbo 2.3 SVO engine into my Pinto. I was looking at transmission options to handle the HP while gaining Over Drive. The GM 4L60E was the transmission I ended up choosing after finding this adapter kit. The order shipped fast and the quality and fitment was far greater than I expected. It used quality hardware and well machined parts. I will definitely use Speed Gems for future projects.

Absolutely amazing service.I ordered a flex plate on a Monday afternoon and by Thursday it was at my house.Looks fantastic.

Absolutely perfect fit. The instructions were easy to follow and tech help was outstanding! Transmission bolted right up.