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This is a great idea, I look forward to seeing the field reports. The “forgetting to turn off issue” is exactly why I contemplated changing the differential ratio and ditching the overdrive.

Hello Dave I purchased one of your voltage stabilizers two years ago not installed as yet but I would just like to say after showing the stabilizer to members of my classic car club they didn't believe it can be done I will prove them wrong this spring😊😊

Dave once these are ready for sale, you should definitely post about it on the UK based TR Registry forum. I’m sure folks across the pond would be interested.👍

Hey Dave, looks like a great alternative to dragging the Revington TR option across the pond for twice the price, plus shipping. Definitely interested for an early (1970) TR6 A-Type. Love the knob mounted switch too.

I see you have the switch for J and A overdrives, would this work for a D OD. I have that on a GT6 motor?

Beautiful layout, every square millimeter is filled.

what a flash back... we had a TR4a many years ago lots of memories... ;)

Does this replace the relay or is it an OD shutoff. I have a Volvo with the Laycock Type D and have been playing around with a shutoff should the OD not be switched off prior to downshifting. Without it shifting up would normally re activate OD cresting a bit of a surprise as revs drop significantly.

Merry Christmas Dave.

Sold!

Chairman of the Circuit Board!

Hi Dave, This might be a stupid question but what is this unit actually controlling? Does it replace some sort of 50 year old wired controller that is currently in the overdrive unit? If so, how does one replace the controller it has now and you replace it with this? Just yesterday, I was looking at examples of guys who have added an overdrive switch to the top or side of the shifting knob. Would this controller make that sort of modification any easier? I’m always interested in your TR6 upgrades. 👍

I just ordered led replacments for my 46 chevy coupe. There great! Found that they also make ones for the origonal lucas headlight fixtures of my 1947 Rover 14 Sports saloon so there on the way. Next project will be the terriable dash illumination of the Rover so im looking forward to your part 2.

So if I understand this correctly, this will save my transmission overdrive by shutting it off when I go to thru neutral to perhaps shift into reverse which would otherwise damage the OD, correct?

Great video Dave! You did a perfect job of following the line, it made for a true feeling of the course in your car. I was the #1 car in group 2 and you can see me in the video waiting for your group to head out. I saw and heard you come through on lap1, you were well cooking well over 55 and sounded great! I had a bit of a different approach and car #1 coming out onto the track than Chris did in your group. Chris followed the pace car much closer than I did initially, I gave him some space and it gave me and the others behind me more open road to run. I probably never go closer than your spacing to the pace car and hoped the guys behind me could also stretch out although I seldom saw anyone in my mirrors. I followed the same racing line and loved the ride, something about running upper rev's in 3rd and 4th that was very satisfying. I did get to see what Jolene could do pedal to the floor on the final straight away, yeah, well over 55 mph. The experience was only eclipsed by the friendships made, I enjoyed our time together Dave and hope to see you again my friend!

I took my club (Detroit Triumph) there a few years ago, we stayed at Seneca Lodge also, Great Fun.

Very cool.

You definitely had more fun than we had :) Glad you enjoyed it! I had to break the rules and do some "rubber banding" so I could feel some of the corners. And it wasn't the car in front of me that slowed me down, it was a few cars ahead... Anyway, I had some fun still.

Nice work Dave! What happens if the overdrive lever is left in the stock “enabled” position?

Very Cool!!!

Bring one to BCD in Burlington. I would be interested in one.

thank you

thank you

This is very interesting Dave and I do have a J-type overdrive in the OrangePeelr. I hope to find you at British Car Day and talk about this new controller. My column switch was acting up the other day so this digital unit might be arriving just in time. I think this unit, installed into your TR4A, and you’re at British Car Day would be an incredible opportunity to share your story and see it working. I know that means a little pressure to finalize it l, install it, and then do the TRials. That might be a little much, but if it worked out, that would be an incredible testament to this new product. See you at BCD regardless! 👍

I like it!

Pretty cool. See you at BCD!

I had to laugh at that pile of luggage! When I was in college, one snowy January evening I drove my TR4 from Boulder CO to the Denver airport to pick up my girlfriend, who was returning from a month-long holiday break between semesters. I had no idea how much luggage she had brought! Fit what I could in the boot, strapped more on the rack... but still had to put the top down to fit the last two or three bags! It was January, it was night, it was cold, it was snowing a little, there were a couple inches of the white stuff on the roads, and we had a 30 mile topless drive home! But we were young and fearless! We survived!

One RUclips certified mechanic calls the pinch bolts that retain the joint on the steering shaft the "bolts of death"... if left out or not properly tightened! 🙄 (He's not talking about Triumphs, either... most cars have at least one.) Over time the all metal, TR6 style joints will wear and get sloppy... occasionally need replacement. Of course the rubber ones harden with age and eventually need replacement, too. Latet TR4, TR4A and subsequent models mount the steering rack in rubber, so there won't be a whole lot of additional road vibration felt through the steering. The early TR4 had a solidly mounted steering rack, so at least one of the rubber "donuts" is a good idea. I can't tell from the images, but would hope the nuts on those pinch bolts are the locking type. The stronger all-metal locking nuts would be ideal (instead of Nylock).

I never trusted that rubber joint on my TR6. One of the English suppliers sells a solid shaft with u-joints at both ends. I replaced mine with that. Like you, I didn’t notice any extra harshness in the wheel after replacing.

You are so lucky having this happen when it did. I'll have to check my joint tomorrow. Funny you didn't feel any play in the steering before it failed.

Dave the clamps that hold the rubber joints are notoriously poor. They have a design flaw. The point where the bolts go in cannot exert enough clamping pressure. There is a fix by cutting a deeper slot for the bolts to clamp on. The UK Triumph Registry forum has several topics on this. I also fitted a TR6 universal joint to the lower shaft, but kept the rubber donut on the top (after doing the modification to the clamp.

Dot 5 and speed bleeders for the win!

Hi Dave in the group there is a light yellow TR6 with 5 bolt wheels. Can you pass on that persons name please. I’m interested in contacting him regarding his conversion. Thanks

Good video Dave. I noticed my 65 TR4A doesn’t have that spring mechanism. Just the cap and no seal at all. Where did you get that o ring?

Nice job !

Way to go Dave👏

Fantastic!! Luckily I’ve never been caught in the rain.

Do you have cruise control on your TR4A?

Great job Dave!

Love the car Dave… what size tires are you using please.. thanks

Is this for sale?

Good thing I am not close to Cincinnati to drive on this tour. Because I am in the process of breaking in the restoration of my TR4 with a Judson supercharger. So far about 250 miles into the break in period, the car stalled out and I was NOT out of gas. So I sat alongside the road for about an hour and could not get it started . Called a towing service and got it back home! The next day the car started up and I managed to go about 50 feet and the car stalled again!! So I suspect something is causing the Holly carburetor to fail or flood. So if I was on this tour, your group would have had a mechanical failure! The tour was a great drive and I yearn for the day to successfully finish one with this car. Thanks for the video. Is is very entertaining.

Dave, did you see that red brick building being built when you were a kid? 😉

Look forward to your next posting. Nothing like a drive with friends.

Outstanding results, Dave. Thanks for the video.

South Main Auto is a great channel. I get a lot of tips from him. Is that a HF blast cabinet in the background? I have one and have done a number of mods to make it work.

If you need more projects, you can come help me 😉

Keeping busy, thanks for the update.

Great ride, thanks for sharing!

I ordered a new top that had a zippered rear window much like a TR6 style top which will make driving in hot weather much more comfortable. It should be here in a few more weeks (hopefully). How about you?