Diff question
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The usual Jag ratios for the older diffs are 2.88 3.07 3.31 3.54 3.77 4.09
Other possibilities are out there as the diff is apparently a kissin' cousin to the well known Dana 44.
I would contact Icsamerica as he has a good handle on this subject
There's some info in this thread that might help
https://www.jaguarforums.com/forum/x...f-head-123057/
Cheers
DD
Other possibilities are out there as the diff is apparently a kissin' cousin to the well known Dana 44.
I would contact Icsamerica as he has a good handle on this subject
There's some info in this thread that might help
https://www.jaguarforums.com/forum/x...f-head-123057/
Cheers
DD
#5
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Since you're racing I'd avoid the thick gear science project. The best thing to do is purchase a new 19 spline Auburn locker, Dana 44 gear set, Dana 44 side bearings. Then install a standard dana 44 yoke and matching drive shaft, this can get you any Dana 44 ratio you want and you'll have a modern system for solid launches.
You'll also need to manage cage roll. The rear IRS will rotate and cause wheel hop / Axle tramp and loss of traction when approximately 350HP is applied.
https://www.jaguarforums.com/forum/x...shings-119418/
The largest rear tire you can fit in the rear wheel well with clearance is a 235 series. That's not enough for a hard launch with a tall diff. A larger tire can be fitted but flaring the rear wheel well is required.
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mount it solid to the car(no rubber mounts), makes for a rough ride and hear all types of road noise, but if its a race car be alright!
there are stories about the actual cage twisting ,and the outer aluminum hubs cracking.
Jag type rear suspension was never designed for hard accelleration with hi-grip tyres.
there are stories about the actual cage twisting ,and the outer aluminum hubs cracking.
Jag type rear suspension was never designed for hard accelleration with hi-grip tyres.
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