Here is one of the most recent releases from WPL, and it is a neat one.
Myself however can not leave my tiny trucks stock, I therefore went and stripped the chassis down to then build upon it.

One of the main things I changed was the transmission as the WPL 2 Speed is by far my favourite transmission in their lineup, not to mention the second gear will allow this little SJ to have a sufficient top end for trail runs.
Here is an affiliate link to the WPL 2 Speed Transmission:
https://www.wplrc.com/products/dual...

Another part of the chassis which was changed was the axle set, the included factory plastic axles were replaced with the WPL metal axle kit for improved steering angle as well as added weight down low.
Here is an affiliate link to the axle kit:
https://www.wplrc.com/products/metal...

While installing the new axles, I also installed the WPL Shock Absorbers to aid the leaf springs and dampen the suspension. These were mounted to the axles using the WPL Brass Ball Ends.
Here are the affiliate links to the Shocks as well as the Brass Ball Ends:
https://www.wplrc.com/products/plast...

https://www.wplrc.com/products/brass...

Upon installing the axles I mounted up an antiwrap bar using the 59mm WPL links and Rod Ends to lessen the stress on the leaf springs.
Here are the affiliate links to the 59mm Links and Rod Ends:
https://www.wplrc.com/products/59mm...

https://www.wplrc.com/products/rode...

I wanted to go for a more modified look and therefore looked at replacing the bulky factory bumper. In place of the factory example went this High Clearance Front Bumper which was originally designed for the C54, all it needed to be bolted up was a little bracket.
Here is the affiliate link to the C54 High Clearance Front Bumper:
https://www.wplrc.com/products/c54f...

After all of the chassis work, I dressed this little SJ up with various Tamiya paints as well as some wooden planking.

And there it is, a very neat little truck, packed with tons of scale detail for a great price.
Here is an affiliate link to the WPL C74 if you wish to take a look:
https://www.wplrc.com/products/c74j...