Found the shop to do my Jag IRS center section rebuild.
Not going to be cheap, around $1,500.00.
In addition to the 4.27 gears and Power-Loc rebuild he will also be supplying some parts to beef up the inner suspension points.
My 327/331 engine, M20, and 255/60-15 tires will certainly stress the suspension and diff more than the original Jag engine/wheels ever could have.
On the subject of my transmission.
I have a very good M20.
Wondering if I would be happier with an M21?
In either case I will be adding the GV overdrive.
As I recall reading the GV OD ratio is the same as an M20 shift so first OD is the same as second gear.
So no real point in using it until fourth gear OD.
But with an M21 it would provide actual gear splits.
M21 also has a taller first gear, not sure how much I would "Feel" the difference with the 4.27 rear?
No drag racing intended.
The funds for all of this are supposed show up "Any day now".