FWD vs. RWD patterns

[steve ravet]

Steve Ochs wrote:

> We did make dual pattern transmissions (200-R4, 250-C, 200-C) but I don't
> rememeber a 700-R4 dual pattern case.
> 
> As far as I remember, the 2.8L V-6 in my 1984 Jimmy had a standard 700-R4
> Chevy bolt pattern.  I know the truck 2.8L is not exactly the same as the
> passenger car 2.8L although they were very similar (cast iron heads vs.
> aluminum, etc.)  I could be wrong.
> 
> I would really appreciate a photo of the 2.8L and 2.5L 700-R4 bellhousing
> pattern.  As I said, all of the information, Technicians manuals,  and
> drawings that I have avaialble (which is pretty limited before 1987) and
> may not be all inclusive show only a Chevy RWD bolt pattern on the 700-R4.
> I would like to see what this pattern really is if it is a FWD pattern or a
> modified Chevy RWD.

I've see the two on the floor next to each other, and they definitely
have different patterns.  One was a 700r4 from a '86 S-10 Blazer (2.8
V6) , the other was a 700r4 from a '91 Caprice (5.7 V8).  No way would
one bolt to the engine of the other.  I don't have pictures, but there
is on on page 4-3 of the S-10 V8 swap manual from JTR.

Still a useful post, though, thanks.

--steve


--
Steve Ravet
International Meta Systems
http://www.imes.com
steve at imes.com