Yes, that is a 4-speed L43 transmission.
The clutch kit you need for that is:
http://marlincrawler.com/clutch/heavy-duty/heavy-duty-clutch-kit-1200-lbAnd select 1979-80 from the drop down menu list
![Thumbs Up :thumbs:](https://board.marlincrawler.com/Smileys/marlin/thumbs.gif)
![](http://marlincrawler.com/sites/all/marlin/files/clutch_metallic640.jpg)
How are your clutch master and slave cylinders doing? No leaks? I know on my 1981 people in the past had spilled plenty of clutch fluid over the master cylinder and it was rusted up pretty bad. It still worked ok, but I didn't want to chance anything so I just went ahead and replaced it. We only sell original Aisin Seiki CO clutch and brake hydraulics which are an excellent replacement at a great price!
BigMike
![](http://marlincrawler.com/sites/all/marlin/files/imagecache/product/sites/all/marlin/files/clutchmaster640.jpg) | ![](http://marlincrawler.com/sites/all/marlin/files/clutchslave200.jpg) |
Clutch Master Cylinder | Clutch Slave Cylinder |