----- Original Message -----
From: Mike D'Ambrogia <miked@tworock.com>
To: Military Vehicles List <mil-veh@skylee.com>
Sent: Wednesday, June 28, 2000 4:24 PM
Subject: [MV] CCKW engine and transmission measurements
> Hey listers,
>
> Does anybody have a resource that would list the measurements of both the
> engine and transmission lengths in the cckw? I'm looking to figure out
what
> the cckw 270 and the clark trans measure from front crank to rear
> transmission output shaft.
>
The tranny is short because there are no synchros in it.
> Also, if anybody has transmission gear ratio's as well as rear end ratio's
> (6:1??) I'd be much obliged. Transfer case is 1:1 in high correct?
>
6.66 : 1 rearends
1.1 : 1 xfer (underdrive)
> I'm working on the idea of the 327 mated to a NV4500/MT-8 (5 speed manual
> w/syncro's and granny low for 1992+ 1 ton gm/dodge trucks) but length of
> this combo and its ability to fit into the engine compartment and under
the
> firewall is a concern. The NV measures 12.375 w/out bellhousing, 327 is
> still unknown in length. All of this will be immaterial if the rear end
> ratio's are 6:1, have to look into ring and pinion sets...
>
Only real option for rears is 6.16 : 1 from a MIL M211/M135
Civy down to 5:34 : 1 but they are rare and you need 3 of them
> Thanks to all who have chimed in on this thread, I'm not sold one way or
the
> other yet, but I'm enjoying the hunt for information and awaiting the
> delivery of the vehicles which is tentatively set for late next week.
>
> For those playing our game at home, here is a summary of what I have
learned
> so far:
>
> -larger tires will help produce higher road speeds
> -transfer case will probably have trouble with higher HP v8 engine, rear
> ends also if the driveline not maintained
I cannot touch mine xfer after a good run and that is with the 6
> -6 cyl 270 engine is real long so there should be room for a v8 in there
> -headers have been made to reduce the struggle to get the exhaust around
the
> steering linkage on the drivers side engine compartment
> -don't have much info on the clark transmission other than it is designed
> for a 2.5 ton
> -stopping the truck from higher speeds will be an issue, creative
solutions
> have been applied to other similar trucks/projects in the past with
various
> levels of success (2.5 ton vehicles apparently develop abit of thrust...)
>
The brakes are too small to stop it from higher speeds
You also have the pedal issue. They are bolted to the bellhousing
>
> Mike
>
> http://www.egroups.com/group/cckw
>
>
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This archive was generated by hypermail 2b29 : Sun Jul 02 2000 - 23:51:33 PDT