Welcome to HermTheOverdriveGuy.Com.  I run a small company officially known as ATV Mfg.  With my personal attention I can offer service and low prices unmatched by other companies.  My specialties are new and rebuilt overdrives for Jeeps with the Dana 18 transfer case.  I can also rebuild your existing overdrive for a very reasonable fee.

I'm pleased to announce the addition of more new parts.  

Dana 23, 25 and 27 Series Powerlock Cross-shafts

I now carry cross-shafts for the Dana 23, 25 and 27 Series
Powerlock Limited Slip Differentials.  These cannot be found anywhere else!  Sold in pairs only for the front differential with no holes and also for the rear differential with holes for the centering block.  Centering blocks should be available shortly.  These reproduction parts are the same quality as the original Spicer parts!

Can't find a Powerlock to fit your Dana 25?  I now carry installation kits that allow the installation of the more common Dana 27 Powerlock into a Dana 25 housing!

Now available for 30-spline axles!

Full-Floating Dana 44 Conversion Kit for the tapered Dana 44 found in Universal Jeep CJs.  This is an ATV Manufacturing exclusive product.  Since Warn discontinued their kit, full floating conversions for the tapered Dana 44 have been unavailable  - until now!  I now carry kits for both 19 and 30-spline axles.

The
Advance Adapters 7/8" SM465 Transfer Case adapter kit.  This new kit provides a combined transmission and transfer case length of only 12 7/8".

New SM-465 mount kit

This kit will allow you to easily mount the Advance Adapters SM-465 adapter (which has three indexing transfer case patterns) to the CJ-5 crossmember with ease!




I stand behind all my products and services.  Should you experience any sort of problem, please contact me right away.

My 1960 CJ-5 with Mt. Saint Helens in the distance.


I am an authorized distributor for the entire product line from the following brands:


Advance Adapters



Mile Marker
3000# Electric Winch for $230
4500# Electric Winch for $350 On Sale!
9000# Electric Winch for $475
SE9500# Electric Winch for $550
12000# Electric Winch for $699


Crown LogoCrown Automotive - Complete Line Available




I offer a NEW overdrive similar to what was originally offered by Warn.  I also manufacture specialty products for 1971 and earlier Jeeps.  The Specialty Products Page has more details on these previously hard-to-find products:

PTO Adapter Kit

Wiper Motor Conversion Kit

Defroster Manifolds

Dual Reservoir Master Cylinder Conversion Kit

Remote Master Cylinder Reservoir Kit

Power Steering Conversion Kit

Flat Fender Body Drain Plugs

Hood Welting Kit

Overdrive Shifter Kits are included on the Overdrive Page

New: Shifter Decals


All prices are subject to change before this website can be revised.  Please contact me for the latest prices when ordering.

Get Involved!  Join a club and meet some friends and enjoy an opportunity to learn.  Four wheel drive clubs are very helpful for an avid and a novice four wheeler to belong to. The members will know where you can four wheel legally, information about playdays, and races that are held in your area. You can learn proper skills of four wheeling so you can minimize the possibility of getting injured (both your self and your family and your rig). You can learn the importance of a winch and how to properly use them so you don't get hurt. The usefullness of air pressure off road and four wheeling skills. Find a club in your area and join for a lot of fun.

I've been a long time member of the Vancouver 4 Wheelers.  Please take a moment to visit their site if you're interested.

www.Vancouver4Wheelers.net




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