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Keep That Factory Boot Looking Sharp on Your New Knob
Swapping in a GrimmSpeed shift knob is one of the easiest ways to upgrade the feel of every gear change, but a 5 speed shifter needs a little extra hardware to keep the factory shift boot sitting in the right spot. The GrimmSpeed Shift Knob Boot Retainer 038008 slides in around the base of the shift knob and holds the factory boot snug against the console, so there is no sagging or awkward gaps once your new knob is installed. Machined for a precise fit, this small but essential piece finishes off the look of your shifter setup and keeps the interior feeling factory clean even after the upgrade.
Key Features
- Holds the factory shift boot firmly in place around the base of the shift knob
- Purpose built for 5 speed manual Subaru applications
- Works with GrimmSpeed shift knobs featuring the M12x1.25 thread pitch
- Eliminates boot sag and gaps for a clean, finished shifter appearance
- Durable construction designed to hold up to daily driving and shifting
- Simple drop in fit that requires no special tools
Specifications
| Detail | Value |
|---|---|
| Part Number | 038008 |
| UPC | 52165173 |
| Brand | GrimmSpeed |
| Type | Shift Boot Retainer |
| Thread Pitch | M12x1.25 |
| Application | 5 Speed Manual Transmission |
What's Included
- 1x GrimmSpeed Shift Knob Boot Retainer (038008)
About GrimmSpeed
GrimmSpeed was founded by a small group of car enthusiasts in Minneapolis, Minnesota, with a simple goal of building smarter, more thoughtfully engineered parts for the cars they were passionate about. What started as a single stall garage operation has grown into a respected name across the Subaru and performance community, known for practical design, careful attention to fit and finish, and products that solve real problems for real drivers. Every part carries that same garage built mentality, whether it is a small accessory like this retainer or a full turbo system.
Related Parts
- GrimmSpeed Shift Knob Delrin - Subaru 5 Speed and 6 Speed Manual Transmission
- GrimmSpeed Shift Knob Stainless Steel - Subaru 5 Speed and 6 Speed Manual Transmission - Black
- GrimmSpeed Tallboy Shift Knob Black Delrin - M12x1.25
- GrimmSpeed Stubby Shift Knob Black Delrin - M12x1.25
FAQ
What is the 038008?The 038008 is the GrimmSpeed Shift Knob Boot Retainer designed for 5 speed manual Subaru shifters, made to hold the factory shift boot in place around the base of an aftermarket shift knob.
Do I need this if I already have a 6 speed shifter?No. This retainer is specifically designed for 5 speed manual setups. Most GrimmSpeed shift knobs fit 6 speed shifters without the need for a separate retainer.
Will this work with any aftermarket shift knob?It is designed to pair with GrimmSpeed shift knobs that use the M12x1.25 thread pitch. Fitment with other brands of knobs is not guaranteed.
Does this fit my factory shift boot?Yes, it is designed to hold your existing factory shift boot in its original position once a new shift knob is installed.
What material is this retainer made from?It is built from a durable material chosen to withstand repeated shifting and daily driving conditions.
Is installation difficult?No, it is a simple drop in piece that fits around the base of the shift knob without any special tools or modifications.
Will my shift boot sag without this piece?On many 5 speed applications, skipping this retainer can leave the factory boot loose or sagging once a new knob is installed, which is why GrimmSpeed recommends it for a clean finished look.
Can this be used on vehicles other than Subaru?It was engineered around Subaru 5 speed manual shifter dimensions, so fitment on other makes is not guaranteed.
Install Instructions
- Remove the factory shift knob by unscrewing it counterclockwise from the shift lever
- Slide the factory shift boot down to expose the base of the shifter
- Place the boot retainer over the shift lever so it sits at the base where the boot meets the console
- Thread on your GrimmSpeed shift knob until snug
- Pull the shift boot back up into position over the retainer for a clean, factory style fit
- Check that the boot sits flush and does not sag or shift when moving the gear selector
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