PRODUCT DETAILS
Hasport B-Series Hydraulic Transmission Mount - 1988-1991 Honda Civic & CRX (EF)
When you drop a B-series into an EF, the mounts are what hold the whole thing together, and the transmission mount does a lot more work than people give it credit for. It locates the gearbox, keeps your axle angles where they should be, and absorbs the twisting force every time you get on it. Get it wrong and you'll feel it as sloppy shifts, driveline vibration, and a swap that never quite feels tight. This Hasport transmission mount is built specifically for a hydraulic B-series transmission in the 88-91 chassis, and it works right alongside Hasport's B-series swap mount kits so your whole drivetrain is located by parts designed to work together.
Pick Your Durometer, This Is The Real Decision
Hasport offers this mount in four urethane stiffness levels, and choosing wrong is the most common regret people have with mounts. The rule is simple: the stiffer you go, the sharper the drivetrain feels and the more vibration comes through your floor and seat. There's no way around that tradeoff, so be honest about how you actually use the car.
62A is the softest and the right call for a street car. You get precise engine and transmission positioning without turning your commute into a buzz. If this EF is something you drive regularly or take on longer trips, start here.
70A is the enthusiast middle ground. It firms things up for spirited driving and the occasional track day while still being livable on the street. For a lot of EF builds that see weekend backroads and the odd autocross, this is the sweet spot.
88A steps into serious territory. Power transfer gets noticeably more direct and the drivetrain stops moving around, which is what you want on a track-focused car. You will feel and hear more of the drivetrain doing its thing.
94A is the stiffest option Hasport makes, built for race cars and extreme use where mount strength and response matter more than anything else. It's not a street mount and it isn't pretending to be.
One honest heads-up specific to this chassis: an EF is a light car with almost no sound deadening in it, so vibration comes through more than it would in something heavier. Everybody wants the stiffest option right up until they drive it to work on Monday. For most street EF builds, 62A or 70A is the answer.
Why Hasport Mounts Are Worth It
Hasport built their reputation in the Honda world on mounts that just fit, and that matters more than it sounds when you're mid-swap with the engine hanging from a hoist. These are CNC machined from billet aluminum and designed with CAD/CAM software for exact tolerances, so the mount bolts up where it should instead of leaving you elongating holes or shimming things to make it work. They back it with a lifetime warranty, which tells you how they expect it to hold up. On a part that's holding your drivetrain in place, that confidence is worth paying for.
Fits Your EF Civic Or CRX
This mount fits the 1988-1991 Honda Civic and 1988-1991 Honda CRX running a hydraulic B-series transmission, and it's designed to work with Hasport's B-series engine swap kits for the EF chassis. If you're building a B-swap in an EF, this is the transmission mount for it.
Who Should Run This Transmission Mount
This is for anyone putting a B-series into an EF Civic or CRX who wants the drivetrain located properly instead of hoping generic parts line up. Street car, weekend toy, or a dedicated track build, pick the durometer that matches how you actually drive it, bolt it in, and get a swap that feels tight and finished rather than one that's always a little loose. It's a small part of the total build cost and a big part of whether the car feels right.
Fits: 1988-1991 Honda Civic and CRX (EF) with a hydraulic B-series transmission. Designed for use with: Hasport B-series engine swap kits for the EF chassis. Material: CNC machined billet aluminum, CAD/CAM designed. Durometer options: 62A (street), 70A (street and spirited), 88A (performance and track), 94A (race). Warranty: Hasport lifetime warranty.
1988-1991 Honda CRX