[freeo75]

I've used type 9 Sierra as listed above with shortened tail shaft and altered gearbox mount (simple) - but they are getting pricey and hard to get. Do you really need 5 gears ......have you thought about changing diff ratio or even going to larger wheels on the back????? I've run full size 14's and 195/60/15's slower off the mark but cruises better.
G