When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Anyone running a TKX 5 spd? I have a Yoke question. My TKX output is a 31 spline shaft and I have a 31 spline Yoke from Richmond Gear/via Summit Racing that is sold as fitting the TKX. This Yoke is only going 3/4" on to the shaft. I can see no blockage on either part. Anyone else run into this?
that doesn't sound quite right to me..... my ROD 6 speed went in a lot farther than that.
Is there some obstruction in the way.?
You probably want to the following if that is the equivalent of a Turbo 400 yoke:
Do multiple searches available as kits or individually.... prices are wildly all over the place so don't buy the first one your see.TH400 spline slip yoke GM part number 3930827
U-joint bolt and strap: I got them at a chevy dealer was it was ages ago:
014018700 bolt & 003882979 strap
Last edited by carriljc; May 24, 2026 at 11:08 PM.
My 81 has a bolt in crossmember. I'm thinking push the yoke all the way in, insert the rear u-joint which will seat with about a 1/2" pull back. all that's needed should be 1/2 inch clearance to get the rear in. What do you think?
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
That yoke will not work on a corvette....you need to pay attention when someone points out things to you 3 posts ago and a full day. Return it before you bugger it up
you have a rear cross member too that the shaft goes over the top
Last edited by Rescue Rogers; May 25, 2026 at 11:28 AM.
Turbo 400 yoke won't fit any Tremec. I know, I have two of them but they're too big. My understanding is all Tremecs take Ford C6 style yokes so I had to buy one for my TKX.
That one piece yoke will not work. Unless you want to loosen the diff to get it all in.
It is very difficult to find a bolt-together 31 spline Ford C6/TKX yoke.
You need the bolt together yoke as factory to fit the shaft above the two crossmembers.
You have a 1310 and a 1350 u-joint choice, or a round bolt-together style. No 1330s anywhere.
Suggest you call SilverSport and order their C3 setup. It fits.
Last edited by leigh1322; May 28, 2026 at 12:54 AM.
Thanks, My mistake. I mistakenly thought it used the Turbo-400 yoke. My apologies.
Originally Posted by Tinkerah
Turbo 400 yoke won't fit any Tremec. I know, I have two of them but they're too big. My understanding is all Tremecs take Ford C6 style yokes so I had to buy one for my TKX.
Last edited by carriljc; May 28, 2026 at 02:14 AM.
I ordered my yoke/shaft assembly as part of my TKX kit from SST but interestingly it's not their product. It fit and works perfectly but was drop shipped separately from a third party supplier. I researched having it made by a local shaft shop I already have a relationship with but the cost would've been similar so I just added it to my SST kit. I still have the box, I can easily get the name off it if anyone's curious.
Update: even though no one asked, the box is labeled "PST".
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
I think mine cost around $200 bucks...1350 i believe...wanted the strength, had to put a kickout on my tunnel and move the hand brake pulley
Not sure where i got mine but Dennys sells them
Last edited by Rescue Rogers; Yesterday at 02:56 PM.
Jeez that's a bargain. Mine was more than twice that, but has a flanged yoke so I it goes into the car in two pieces and gets mated in place with no interference with the car.
TKX Ques
