89 XJS GM 400 {shift kit]
A stage 1 kit will be quite mild. Typically they just firm up shifts a little and encourage earlier downshifts. An enthusiastic driver would consider a stage 1 shift kit how an automatic transmission should be.
I've fitted a few to various cars over the years and always been happy.
I've fitted a few to various cars over the years and always been happy.
This is what I installed in JagZilla when she still had the Turbo400 in her.
http://www.summitracing.com/parts/trg-400-1-2/overview/
I had firm shifts when I wanted them, and soft shifts when I was just cruising. I was also able to upshift and downshift at will, and hold 1st & 2nd gear past redline.
http://www.summitracing.com/parts/trg-400-1-2/overview/
I had firm shifts when I wanted them, and soft shifts when I was just cruising. I was also able to upshift and downshift at will, and hold 1st & 2nd gear past redline.
That's whats in mine now along with the B&M adjustable vacuum modulator and my kickdown set to "kick down" at 3/4 throttle vice WOT. Makes the car w-a-y more fun to drive then the stock setup.
I'm having a hard time finding the shift kit I want.
Why you ask?
Because I want the shifts to be softer, not harder. I want the shifts to be completely unnoticeable. I don't want to feel the transmission shifting at all, just smooth acceleration.
Does such a kit exist?
Mark
Why you ask?
Because I want the shifts to be softer, not harder. I want the shifts to be completely unnoticeable. I don't want to feel the transmission shifting at all, just smooth acceleration.
Does such a kit exist?
Mark
I'm having a hard time finding the shift kit I want.
Why you ask?
Because I want the shifts to be softer, not harder. I want the shifts to be completely unnoticeable. I don't want to feel the transmission shifting at all, just smooth acceleration.
Does such a kit exist?
Mark
Why you ask?
Because I want the shifts to be softer, not harder. I want the shifts to be completely unnoticeable. I don't want to feel the transmission shifting at all, just smooth acceleration.
Does such a kit exist?
Mark
its called an original Jaguar spec GM400 box
if yours is shifting and your noticing it, then it probably wants a strip and rebuild replacing all bushings and any other worn parts, and all 7 ( yes 7 ) flow ball bearings need to be installed , i have reduced mine to 4 bearings, from memory a minimum of two are required for the box to still work , i also installed the adjustable vacuum , it now hangs on for higher revs for longer ,
in the UK a full strip and refurb at a gearbox socialist will cost £2k , they will also warrantee the box for that
i rebuilt my own ( see thread ) for under £500.....
BB
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This is what I installed in JagZilla when she still had the Turbo400 in her.
http://www.summitracing.com/parts/trg-400-1-2/overview/
I had firm shifts when I wanted them, and soft shifts when I was just cruising. I was also able to upshift and downshift at will, and hold 1st & 2nd gear past redline.
http://www.summitracing.com/parts/trg-400-1-2/overview/
I had firm shifts when I wanted them, and soft shifts when I was just cruising. I was also able to upshift and downshift at will, and hold 1st & 2nd gear past redline.
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