Od833 4speed in 64 valiant

i think the 64 a body tunnel is to small for a 10 1/2'' clutch bellhousing . i have a 64 barracuda with a 4spd . it only 10'' in the stock bellhousing . do to its small size of the cars tunnel . maybe a scatter shield type od is smaller , still must flatten the , and turn down the od of the release bearing retainer . DSC07188.JPG