TKX 5 Speed in 68-72 3rd Gen
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Me too! I don't think a lot of them have been shipped out yet. I saw someone on here getting ready to put one in a I think a first gen. He welded in a 4 speed hump. I'm not sure if you have to do that or if he was just trying to make it look more correct.
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ProFit TKX 5-Speed Kit for 1968-74 Gen 2 X-body (Nova, Ventura) - American Powertrain
ProFit TKX Installation Kit for 1968-74 Gen 2 X-body (Nova, Ventura)
americanpowertrain.com
"NOTE: Kit does NOT require modifications to tunnel, console or chassis."
Silver Sport Transmissions and others have kits available.
I'm planning to use one in a 66 project.
I saw that on their site also. They also list my 68 as a Gen 2 lol. So I contacted them to confirm and this is what they emailed me back. Check the note section. Lots of conflicting info with American Powertrain. Then I contacted Silver Sport and he said they have not personally installed it in a third gen but guaranteed it would fit. He said if there was any modifications necessary he would personally pay to have everything shipped back to him. I'm going to go with Silver Sport for sure
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ProFit TKX 5-Speed Kit for 1968-74 Gen 2 X-body (Nova, Ventura) - American Powertrain
ProFit TKX Installation Kit for 1968-74 Gen 2 X-body (Nova, Ventura)americanpowertrain.com
"NOTE: Kit does NOT require modifications to tunnel, console or chassis."
Silver Sport Transmissions and others have kits available.
I'm planning to use one in a 66 project.
The information Bryanw80 posted indicates tunnel modifications are required. I know my car would require "some" modifications as it is currently a column shifted 4L60e that I got from Keisler. Silver Sport took over Keisler when they went out of business. Bryan if you pull the trigger on it you need to post up your experience from order date to burning rubber. I know a lot of us are interested in how it comes out.
I will post when I end up doing it for sure. I do believe there are no tunnel modifications necessary as stated by Silver Sport. I think American Powertrain has a misprint.
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111 Posts
I ordered my TKX from silversport
probably some issues with definition of modifications
The TKO needed some mod to tunnel just to get the tranny to fit
yet even a muncie needs modification if going in a column shift car as just cutting a hole for shifter is a modification
right from factory the tunnel humps for 4 speeds and auto differed as shifter position is different
so here is my interpretation
no mods needed to get the TKX to fit
no mods needed to 4 speed floor shifter car
hole for shifter needed for stock column shift car, add the 4 speed hump patch to match stock 4 speed appearance, but probably not needed
probably slight mod needed to auto floor shifter car as shifter position different (don't know if they will or can supply a TKX with shifter in stock auto shifter pos)
probably some issues with definition of modifications
The TKO needed some mod to tunnel just to get the tranny to fit
yet even a muncie needs modification if going in a column shift car as just cutting a hole for shifter is a modification
right from factory the tunnel humps for 4 speeds and auto differed as shifter position is different
so here is my interpretation
no mods needed to get the TKX to fit
no mods needed to 4 speed floor shifter car
hole for shifter needed for stock column shift car, add the 4 speed hump patch to match stock 4 speed appearance, but probably not needed
probably slight mod needed to auto floor shifter car as shifter position different (don't know if they will or can supply a TKX with shifter in stock auto shifter pos)
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451 Posts
Something to consider. Fitment will be different between an LS engine versus a gen 1 small block engine do to the bellhousing mounting flange on the rear of the engine. The LS engine is flush with the heads which will move the transmission forward.
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