Any Experience Towing With A 1965 Lincoln C3VP-7006-A Twin Range Transmission?

[chris401]

I picked up a running 65 430 engine and transmission today. If I refrain from pulling mobile homes or D9s would this be a stout transmission behind a 430 in an F-250 with 3.54 gears? Not real interested in an automatic pickup but it is supposed to be a good unit.
Thanks

[Royce]

That is an extra heavy duty version of the cruise o matic..  They were behind 427s in Thunderbolts, so yes they should be able to handle life in a 3/4 ton pickup.

[chris401]

That is an extra heavy duty version of the cruise o matic..  They were behind 427s in Thunderbolts, so yes they should be able to handle life in a 3/4 ton pickup.

Learned something new. It has that odd two spline output shaft. The regular FE C-O-M bell I have does not have that fifth top center bolt hole. I take it the FE bell housing for it is pretty rare?

[FrozenMerc]

Yep, Heavy Duty Cruis-O. If you are going to tow with it, make sure you have enough oil cooler to keep the temperature under control.  Otherwise it should be fairly bullet-proof.

A '65 Continental probably weighs about the same as your 3/4 Ton anyways, and I'll bet a box of doughnuts that the factory tow rating wasn't much different either.....

[chris401]

Yep, Heavy Duty Cruis-O. If you are going to tow with it, make sure you have enough oil cooler to keep the temperature under control.  Otherwise it should be fairly bullet-proof.

A '65 Continental probably weighs about the same as your 3/4 Ton anyways, and I'll bet a box of doughnuts that the factory tow rating wasn't much different either.....

Your probably right. Truck weighs 48XX with the tool box. The transmission does have 6 shift lever positions. I would like it to start in first when in drive, anything I can do to make it shift normally?

[FrozenMerc]

Your six positions should be (P)ark - (R)everse - (N)uetral - D1 - D2 - L

D2 starts in 2nd gear, and D1 starts in first.  Both end up in 3rd - High range.

[chris401]

Your six positions should be (P)ark - (R)everse - (N)uetral - D1 - D2 - L

D2 starts in 2nd gear, and D1 starts in first.  Both end up in 3rd - High range.

I would like to start in first when in Drive. From what I read it only starts in first when you put it in first unless your onto the throttle. Was that the earlier twin range or my model?

[FrozenMerc]

Your thinking of the earlier single range Ford-O-Matics.  I don't think a MEL backed Cruis-O was ever offered in a single range version, they were all dual range.  So buy putting it in D1, it will always start in 1st, irregardless of throttle position.

[chris401]

Your thinking of the earlier single range Ford-O-Matics.  I don't think a MEL backed Cruis-O was ever offered in a single range version, they were all dual range.  So buy putting it in D1, it will always start in 1st, irregardless of throttle position.

So this one shifts like a modern 3 speed in Drive under normal driving conditions, 1-2-3 without touching the shifter?

[FrozenMerc]

The short answer is YES.

The long answer digs into the weeds on how the transmission functions.  These transmissions combine a 3 element torque convertor and a hydraulically controlled 3 speed and reverse planetary gearset. Dual Range transmissions are equipped with a one-way clutch incorporated into the planet gear pinion carrier.  When in the D1 position, the engine torque is delivered to the front clutch.  The torque reaction of the one-way clutch causes it to lock up and hold the drum stationary, thus creating low or 1st gear.  At the 1-2 upshift, the front servo is engaged, and as soon as the front band picks up the reaction torque, the one-way clutch will start to free wheel and the transmission will be in 2nd gear.

[chris401]

The short answer is YES.

The long answer digs into the weeds on how the transmission functions.  These transmissions combine a 3 element torque convertor and a hydraulically controlled 3 speed and reverse planetary gearset. Dual Range transmissions are equipped with a one-way clutch incorporated into the planet gear pinion carrier.  When in the D1 position, the engine torque is delivered to the front clutch.  The torque reaction of the one-way clutch causes it to lock up and hold the drum stationary, thus creating low or 1st gear.  At the 1-2 upshift, the front servo is engaged, and as soon as the front band picks up the reaction torque, the one-way clutch will start to free wheel and the transmission will be in 2nd gear.

Thank you. My searches weren't getting anything on this particular model then I remembered my 1968 Motors Auto Repair Manual touched on transmissions. I do not remember any small rear mounted valve bodies so I don't think I have ever opened one of these up. I got a stash of kits and other parts from a man who restored Lincoln's. He gave me a couple of drums saying that was the weak link. Not sure if this is it or not.