1963 Willys 4 Wheel Drive 3 Speed with Overdrive

[@charlesperkins941]

Just getting up to 40 mph wore me out just watching, lol! Btw, that is a good way to wear out an Overdrive unit fast. Fun video, Thanks.

[@RichWaite-RMWservicesLLC]

HA! I seem to just use OD in 2nd gear going up hills, and occasionally on big roads in 3rd, but not often do I have far enough to go to get it in 3rd OD..

[@-oiiio-3993]

It's also a good way to run through the gears to test and / or to demonstrate. I've run Warn ODs hard off road behind V8s and on my current Kenne Bell equipped, over carbureted 225 Odd Fire with 4 speed. Never a hiccup.

[@charlesperkins941]

@@-oiiio-3993 Sure, ocssionally spliting all gears isn't going to ruin a Warn Overdrive. However, "Herm the Overdrive Guy" says you'll wear out the syncros shifting like a trucker - and he should know. As for the rest, strength isn't in question. (I run one behind a 302 V8/SM420, and another behind a 225 V6/SM435)

[@-oiiio-3993]

@@charlesperkins941 Once one knows the dance, the OD can be shifted frequently and smoothly. I've never known one to have failed.

[@charlesperkins941]

@@-oiiio-3993 Wow, I bet you know the "dance" so well, you don't even use the clutch, and they still last over a 100k miles. Simply amazing! It's not everyday a person gets to meet a self proclaimed Overdrive expert. Please, by all means, share your expertise all over the internet - I'm sure Herm the Overdrive Guy won't mind a few extra new customers.

[@-oiiio-3993]

Twin stick T - case operation: He starts in 4WD low (underdrive). At 00:37 he shifts to 4WD high (standard range). At 01:03 he shifts to OD, then from 4WD to 2WD 'on the fly', leaving the twin sticks of the transfer case in 2WD 'High', which is standard range for pavement driving. At 01:15 the OD is again engaged, now the 3 speed Jeep is in its highest gear range for highway cruising. The transmission gears are standard range, the transfer case offers standard or underdrive, a Warn / Saturn OD runs standard or overdrive. With underdrive (Lo), standard, and overdrive available for each of the transmission gears the OD equipped 3 speed becomes 9 forward, three reverse and a four speed so equipped has 12 forward, 3 reverse. The 'LO' range (underdrive), however, should only be used in 4WD.

[@wywybulldog3785]

Nice!

[@aw8388]

I recognize that whine, lol

[@seanmaccionnaith3458]

I will sell you the new gearbox you are going to need very shortly if you keep shifting like that

[@RichWaite-RMWservicesLLC]

Just did it for the video, but if you have turn signal lenses or door & window handles I’d be interested

[@asishgoldenmemories9452]

Can't easily understand.

[@-oiiio-3993]

The transmission gears are standard range, the twin stick transfer case offers standard or underdrive and shifts from 2WD to 4WD, a Warn / Saturn OD runs standard or overdrive. The lever closest to driver is the transmission gear shift, the next one over is the overdrive lever (forward for OD, back for standard). The two shorter levers are the transfer case - left is forward for 2WD, back for 4WD - the right back for standard range, forward for underdrive (Lo). With underdrive (Lo), standard, and overdrive available for each of the transmission gears the OD equipped 3 speed becomes 9 forward, three reverse and a four speed so equipped has 12 forward, 3 reverse. The 'LO' range (underdrive), however, should only be used in 4WD. At the beginning of the video, the transfer case is in 4Lo (4WD underdrive) At 01:04 the T - case levers are in 2WD standard range, the mode for pavement driving. images.mechanicsurplus.com/g/V4W6SkdrHo/060b3e9c5d7d54743918b3fa714119f7.jpg

[@asishgoldenmemories9452]

@@-oiiio-3993 thanks for your information

[@-oiiio-3993]

@@asishgoldenmemories9452 No problem. I use a Warn OD in my current Jeep, a 'flatfender' with hopped up 225 Odd Fire and 4 speed with the older Spicer 18 T Case and have run them on other Jeeps. They are a wonderful upgrade.