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Oppai Factory High Clearance 4M Transmission Conversion Plate for CR18P

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Price:$14.99

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OppaiFactory  
Arrives soon! Get it by Nov 14-19 if you order today
Nov 14-19

Returns & exchanges accepted

You can only make an offer when buying a single item

Star Seller. This seller consistently earned 5-star reviews, shipped on time, and replied quickly to any messages they received.

Highlights

CR18P High Clearance Conversion to TRX4m Transmission Plate

Love you CR18P, but hate that there are no gear options or upgrades to dial in your rig?

This plate is just as it sounds, this is a custom designed transmission plate that allows you to install a TRX4m trans into your CR18P. You can install the plate in either motor point forwards ot rearwards orientaion so both the 180 and 370 Transmissions will fit.

This is also a high clearance plate which sucks the underside of the skid up 5mm to become flush with the framerails and decrease underside high centering and hang ups.

Works with stock driveshafts (snug fit on the 4M output shafts) and can be used with CR18 or SCX24 non D-Shaped shafts. It can also be used with TRX4m shafts if you want to do a portal delete. Most CR18s work with C10 spec shafts but you should measure your rig to confirm.

**Please note that if you are running your rig in the counter spinning shaft layout you will need to flip the rear diff and go back to a conventional setup.

Comes with instructions and SS hardware to mount the trans and is able to run both the stock m1.6 or m2 screws for if you are running stock or upgraded metal links.



Free Lifetime Replacements:

I understand that 3d parts have can be more susceptible to breaks over metal or injected nylon parts, so for as long as I am business I offer free lifetime replacements of any parts that break for any reason. Simply cover the shipping, and I can ship out any replacement part or parts you need to make your rig whole again. If you are international, I understand shipping costs more so I will give you multiple sets of whichever part was broken to save you if you have another accident in the future. All of my products evolve over time if I find a better method or update I can do to improve them. If you do have a break on an older ver. of the part, then I will supersede you to the current ver. for only the cost of shipping.

Disclaimer:

This is a 3D printed part. It is made from PLA+ Plastic. It has an inherent "layered" look and may require some slight modification if your vehicle is fitted with other aftermarket parts.

Please view my packaging and inspect the package BEFORE handing it to young children. While my logo is suggestive, it is not unsightly, but may require the approval of a responsible parent before giving it (and the small contents inside) to a child.

Due to a rather insane review I received, I need to state this, and be sure anyone else so inept HAD the opportunity to read this...

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  • Order today to get by Nov 14-19
  • Returns & exchanges accepted within 30 days
  • Cost to ship: $6.82
  • Ships from: Sedro Woolley, WA

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Reviews for this item

What buyers say, summarized by AI: Great quality Fits well Fast shipping

4.7

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(26 reviews)

4.8 Item quality
4.9 Shipping
4.8 Customer service
95% Buyers recommend
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5 out of 5 stars 5 This item

todd Oct 30, 2026

Item works as designed perfect fot

todd Oct 30, 2026

5 out of 5 stars 5 This item

francois Jun 7, 2026

Perfect for my cr18p evo

francois Jun 7, 2026

5 out of 5 stars 5 This item

Larry Apr 12, 2026

Arrived fast,install was easy,fit perfect.i highly recommend this conversion skid with the trx4m low speed gears to smooth out the cr18p slow crawl

Larry Apr 12, 2026

5 out of 5 stars 5 This item

Samuel Mar 9, 2026

Great quality print. Item was as described.

Samuel Mar 9, 2026

OppaiFactory
OppaiFactory ·

Sedro-Woolley, Washington

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 4.9
·
5.9k sales
·
3 years on Etsy

Typically responds within a few hours

Typically responds within a few hours

Smooth shipping Has a history of shipping on time with tracking.

Speedy replies Has a history of replying to messages quickly.

Rave reviews Average review rating is 4.8 or higher.

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Listed on Oct 22, 2026