Re: [ihc] 11" clutches

[Howard R Pletcher <n9ads@xxxxxxxx>]

In the mid-60's it appears a 10", 9 spring was the standard clutch with
11 and 12" optional with V-8 engines.  By the 69 D-line, it appears that
11" clutches were the only option, even in the 1500/500 models (and even
these came standard with a 10 1/2" clutch behind the standard 6-232/258).
 The MS-1210/1510 Multi Stop replacement for the Metros did have an
optional 12", but these really got a stop-and-go workout.

I would suspect the discontinuance of the 12" option more reflected
improvements in clutch state of the art rather than a downgrading of
truck capability.

Howard

On Mon, 6 Dec 2004 11:59:50 -0700 "John M. Adams" <jma@domain.elided>
writes:
> 
> My '67 Travelall has an original equipment 12 inch / 12 spring between
the
> 345 & T34. So in later models, IH went to a smaller clutch behind a 
> bigger engine? What year brochure are you looking at?