So I have a 75 XJ12C and a 90 XJ12 that’s making its way from Canada to Texas. I want to swap in a 5 speed manual in one of these cars but I don’t want to spend $5-7k on a kit. I’m in the US where T5 transmissions should be readily available used.
What are my options?
Mustang V8 GT T5, 2.95:1 1st. Replace rear housing with one from a S10 Chev T5 to move shifter to “right” position. Rebuild trans, adding cluster reinforcing plate available on eBay for about $75…
Thank you, I think this will get me started as adaptor plates and pedal boxes are available.
I put the 700 r in my Mark 2
It converts the car to a WONDERFUL long term driver
But I’m old
Thanks, I have a 700R4 in the on that I want to convert to a 5 speed, the 75 12C
Wow
Ok Superman😀
Send pics when converted!
For an idea or two. Go to You tube. Johnathan Winans. Two truck operator by trade. Fabricator from junk as a past time. Adapted 5 speeds t two old engines. Buick Straight 8. Cadillac flat head V8. Principles seem to be transferable /
Somewhere , on J-L, I think, I read that the auto pedal box could be drilled for the added pedal !!1
Thanks, pedal boxes etc are not a problem as they are available. I just don’t want to drop $3500 on a new TKO trans when there are used T5’s available everywhere
This is a “Button” Flywheel I make to be used with the original flex plate
I don’t know about the XJS so much but Brown’s Lane didn’t do sedans/coupes with a manual in LHD because there was no room for the pedal box. I briefly drove a manual XJS 6 here and it was pretty tight with the extra pedal even in RHD. Are there successful conversions over there?
They made the Series 1 to 3 in manual LHD version.
I didn’t know that. Thanks for the correction. I read a history of Jags in the U. S. years ago that mentioned no manual XJays but obviously I misremember the text.
Norman,
Thanks. Where are you located?
FYI, I owned a 6 cylinder XJ-SC with a 5 speed. It was a project car and as sloppy as the shifter was. It was a delight!
I’m in Australia, specialize in converting factory V12’s 5.3 to 6.0, 6.0 to 6.7, and the ultimate, a 7.5 Litre
If you have a website, I’d love to see it
Share the details bro…
Wow, never new that you made a flywheel to adapt onto the flex plate, Awesome 
Not to divert from the thread Norman but, are you aware of any such clutch pedal box that can be fitted to the 94 XJ81 which would include a master cylinder to can hook up to the ABS brake lines?
XJ40’s were available with a 5 speed in the UK
The parts manual says that 94 XJ12 had one but I’ve never seen one and don’t know of any that exist.
