Im tryin to figure out which year/car had r200 with 12mm riing bolts and 30spline outputs. And wat ratios they were.

I believe i have a 3.90 rear end but am not sure becuzz the swap was done buy the owner b4 the guy i bought it from. It definately has shotter gears than my 78 280. both has the 4spd. And i know that the original r200 was a 3.535.

http://www.geocities.com/inlinestroker/ratio.html

http://www.zcar.com/forums/read.php?f=1&i=438730&t=438730

darrel those are two great sites . I had lost contact with norm when my hard drive died. Thanks Gary

According the the zcar site, I have a 4.11 diff. Too bad its not an lsd:ermm: Kinda suks wit the 4 speed tho, i really needa get that 5 spd.