RC10Talk - The Net's Largest Vintage R/C Community

I'm not sure what you all are using for turnbuckles but I was in the market for some for my Team Car rebuild. I'm far too cheap to buy anything titanium, nor am I a good enough driver to make use of any performance gains. I wanted something a tiny bit more flashy than the universal cut-to-length Dubro ones I could find. I ran across these spiffy stainless steel ones marketed for R/C airplanes. I did a little figuring/guessing and bought 2 pairs in the 1 5/16 inch length for front and rear bulkheads and 1 pair of the 1 1/2 inch for the front steering turnbuckles, for use with slightly longer than stock RPM standard length ball cups. They turned out pretty nice IMO.

https://www.espritmodel.com/pushrod-turnbuckle-steel-secraft-440-2.aspx

I typically get the chrome Schumacher turnbuckles in whatever lengths I need.

juicedcoupe wrote: ↑Fri Apr 07, 2023 4:59 pm I typically get the chrome Schumacher turnbuckles in whatever lengths I need.

They work with the 4-40 ball cups? They are nice...

Mwildmann wrote: ↑Fri Apr 07, 2023 5:13 pm

juicedcoupe wrote: ↑Fri Apr 07, 2023 4:59 pm I typically get the chrome Schumacher turnbuckles in whatever lengths I need.

They work with the 4-40 ball cups? They are nice...

Yes, they are M3 thread. M3 is slightly (very slight) larger than 4-40.

juicedcoupe wrote: ↑Fri Apr 07, 2023 5:17 pm
Yes, they are M3 thread. M3 is slightly (very slight) larger than 4-40.

Dang, and here I thought I was about to contribute something helpful! When I invest in a basket case RC10T I'll be sure to give the Schumacher ones a shot.

Mwildmann wrote: ↑Fri Apr 07, 2023 7:04 pm

juicedcoupe wrote: ↑Fri Apr 07, 2023 5:17 pm
Yes, they are M3 thread. M3 is slightly (very slight) larger than 4-40.

Dang, and here I thought I was about to contribute something helpful! When I invest in a basket case RC10T I'll be sure to give the Schumacher ones a shot.

Those stainless turnbuckles you used are new to me and look really nice.

Frankentruck wrote: ↑Fri Apr 07, 2023 7:14 pm Those stainless turnbuckles you used are new to me and look really nice.

Thanks! I'm definitely happy with them.

They very much resemble Tecnacraft Ti turnbuckles, and that to me is AWESOME ! Never seen them before so thank you

Yeah they look really good!

MarkyDents wrote: ↑Fri Apr 07, 2023 7:59 pm They very much resemble Tecnacraft Ti turnbuckles, and that to me is AWESOME ! Never seen them before so thank you

My pleasure, and I agree. They have that sort-of darker hue like titanium....but only $3 a pair. I'll rock fake titanium every day of the week.

My only complaint is the slightly inconsistent machining...but I already got over it.

Want to thank you also. I was sorting turnbuckles last month and was putting tecnacraft in a pile when I had a really heavy one to go with them. Definitely tell the weight difference but damn they look very much alike. Now I know where to look for more to finish the stuff I found.

Todd

klavy69 wrote: ↑Fri Apr 07, 2023 8:45 pm Want to thank you also. I was sorting turnbuckles last month and was putting tecnacraft in a pile when I had a really heavy one to go with them. Definitely tell the weight difference but damn they look very much alike. Now I know where to look for more to finish the stuff I found.

Todd

Sorting out a whole pile of titanium turnbuckles, eh? Not a bad problem to have! Really glad to have helped out.

Not to be the bearer of bad news, but I believe that you'll find that you have an interference problem between these ball cups. Move the steering as you compress the suspension.
You have RPM ball cups AND RCPS/Losi bellcranks. Either one is likely to cause problems by themselves, and it's almost guaranteed with both. I personally avoid using either on a buggy front end.

You can try moving the camber links to the outer holes of the shock tower, if you have enough adjustability.

Schumacher makes a low profile ball stud that can be used at the tower to provide a little more clearance.