Speedway Double D steering UJ's

[Paul B]

Anybody here use them? I ordered a couple from Speedway, to go with their steering column, to a Vega box, and the fit of the double D is terrible. The spline to the box is okay but the connection to the column is slack as a yak. I guess I could graunch down on the tightening screw, but the drive faces would then be angled a bit. I'm not sure if it is the UJ or the column that is at fault. I could shorten and re-machine the column end to suit the DD?

Or I might get away with slipping a piece of shimming steel in one side to get it fitting better I guess, but the price of this stuff you'd think they'd get it right first time.

I made my own intermediate shaft from 3/4 stainless with the DD slowly and carefully ground on, with plenty of use of a vernier caliper, fits luvverly.

[randrhotrodimports]

These are the Unisteer ones i believe. I have a couple at home together with the D shaft they supply, i will check fit tonight and let you know.
Russ

Anybody here use them? I ordered a couple from Speedway, to go with their steering column, to a Vega box, and the fit of the double D is terrible. The spline to the box is okay but the connection to the column is slack as a yak. I guess I could graunch down on the tightening screw, but the drive faces would then be angled a bit. I'm not sure if it is the UJ or the column that is at fault. I could shorten and re-machine the column end to suit the DD?

Or I might get away with slipping a piece of shimming steel in one side to get it fitting better I guess, but the price of this stuff you'd think they'd get it right first time.

I made my own intermediate shaft from 3/4 stainless with the DD slowly and carefully ground on, with plenty of use of a vernier caliper, fits luvverly.

[langysrodshop]

Paul i've got some of those UJ's here and they fit the DD shaft fine so you might need to look at the column.

[randrhotrodimports]

Yep fits fine on the double D shaft as well.

[Paul B]

I'll pull it apart and measure up the flats on the column, see if it was a Monday morning jobbie. There is actually room to regrind it further back, without shortening the casing etc.

[a5llx]

Hey mate ive got one of them on my column (dd) and it fits great , i didnt pay alot though , ($ 50 inc shipping if i remember rightly) are they normally more than that ? mustve been a US ebay bargain ! .......for once lol

[Paul B]

Hey mate ive got one of them on my column (dd) and it fits great , i didnt pay alot though , ($ 50 inc shipping if i remember rightly) are they normally more than that ? mustve been a US ebay bargain ! .......for once lol

They don't cost that much at source, but add postage, vat, and the gubberments other pound of flesh, and the price rises a fair bit. They look the part though.

[randrhotrodimports]

$69 from Speedway

[a5llx]

They sure do look good , go well with a stainless dd shaft and chrome column

[Paul B]

I have a feeling mine is getting close to maximum angle here. I better measure it. I believe 30 degrees is the furthest you want to go?

[kapri]

I think it's actually 32/3 degrees but I wouldn't want to run it right on the edge. For anyone that wants to try it's a laws of physics thing when you get down to it .Before I realised this I looked at the joint and figured it was due to clearances etc so rounded a few edges and had a joint that would turn through 45 degrees IN MY HAND. When actually installed it begins to loop around itself so causing bind.

You can prove this on the bench with a couple of extensions and a tool box u/j .Open your vice just enough for on eextension to rest in and start with the u/j straight. Start rotating and slowly increase the angle as you reach 30+ you'll see the other extension in the vice rising up of its own accord.
When that is held firm in a car that's the point that it starts to bind.

You can buy a Borgesson double joint that allows 75 degrees or movement or you can do what I did and make one from two standard ujs (very) close coupled .