SERIES DIPSTICK KIT
If you do not have one of our overdrives, you can buy our handy dipstick kit that will enable you to check the oil level in your transfer case by simply lifting out the centre seat. The kit consists of a dip-stick tube that screws into the level plug and a replacement top cover with a filler plug.
This kit is included with the Model SS Overdrive, and there is no need to purchase it in addition to the overdrive.
The male thread on the dipstick elbow is 3/8” NPT. This thread is used on the transfer cases of Series IIA and Series III models. Some SII models and earlier SI models have smaller 1/8” NPT threads and modifications to the elbow will be required for application. Very early Series I models do not have a filler plug in a suitable position and the dipstick cannot be fitted.