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MX5 'Donor Package'

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Rush Motorspork
1 hour ago, Chris King - Webmaster and Joint North East AO said:

No I said it isn’t top end 😛

 Not you :p

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5 hours ago, Mark (smokey mow) said:

Ratios would be either 3.6, 3.9, 4.1 or 4.3.


the 4.3 was only used on the Mk1 1.6 diff Up to 1993 which is characterised by the larger rubber damper on the prop shaft flange.

From 1994 the 1.8 used the larger 7” diff with a 4.1 ratio and then when the detuned 1.6 came out in 1995 this likewise used the same diff. The mk1 diffs had bolt on shafts Whereas from the Mk2 These were push in shafts.

the 3.6 and 3.9 ratio were only used in the cars with 6-speed gearboxes and again used the 7” case with push in shafts.

Thanks Mark, great info.





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