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In a message dated 07/25/2001 6:21:53 PM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
> >The 700r4 is basically a th350 with OD. The 4l80e is basically a th400 with
> >OD. in fact the rear tailshaft to change from electronic to cable Speedo
is
> >from a th400. Th350 and th400 are two complete different transmissions.
>
> You're close...
> The TH-350 was the 2004R's baseline
> The TH-400 was the 700R4's baseline
> The 4LE80 wasn't based on either one, but was engineered from scratch.
>
>
> Kelly & Jana Hanna
> Still two Elkys
> 5 weeks til East Texas
> Red Rocks Country
Kelly,
I'm not sure where you are getting your information from, but Larry
is correct on this.
The 4L60 (700R4) is an overdrive based on the TH-350. 4L60E is electronic
version.
The 4L80 is an overdrive based on the TH-400. 4L80E is electronic version.
The 200-4R is an overdrive based on the TH-200.
Check out:
http://www.gnttype.org/techarea/transmission/transtutor.html
Sounds like a 4L80 would be a good choice for a beefed up BBC in a 3600 lb
Chevelle if a 'near indestructable' overdrive is desired.
---------------------
Kurt Ehrhardt
ACES #1280
66 Malibu
66 SuperSport
Enfield, CT
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