want rear disk without changing overall length of rear....please help!!!

[dragstang86]

Ok how can i do this....I want rear disk but i still want to be able to run 15x8 draglites with my 275/60/15's on them. This is on a 90 lx that currently has the stock drum rear. I have a 93 cobra rear i was thinking about putting in but it is 1.5 inches longer than a stock rear which prevents me from using my rims and tires. I had thought about shortening the cobra rear but then i would need new axles that i guess i could buy from moser or strange. What would the best way of going? Ive have reseached the SN95 parts but still not clear on if i would be able to use those parts and my rear to convert to disc and still keep the factory length.

Whats the best solution???

please help thanks