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post #1 of 6 (permalink) Old 06-24-04, 10:02 PM Thread Starter
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c4 in crossflows

c4's were mated to 4.1 crossflows from the factory wer'nt they? Was the xf 3 speed a c4?

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post #2 of 6 (permalink) Old 06-25-04, 01:20 AM
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Re: c4 in crossflows

G'day as far as I know Ford used the Borg warner t35 in all its sixes right up and including some EA's in its six's. The C4 and the FMX were used in the v8's.
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post #3 of 6 (permalink) Old 06-25-04, 04:34 AM
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Re: c4 in crossflows

The XF will most likely be a BW40 ..XE-XF had a BW40 and EA"s had a BW51 which are basically later model 35's with minor improvements.

C4's were mated to sixes from XY-XB pre crossflows and XC -XD crossflows.
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post #4 of 6 (permalink) Old 06-25-04, 06:45 PM Thread Starter
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Re: c4 in crossflows

thanks guys,
So how hard is it to put a c4 on a crossflow that had a bw on it originally? Is it a straight bolt on or is there an adaptor required?

thanks
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post #5 of 6 (permalink) Old 06-26-04, 12:11 AM
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Re: c4 in crossflows

Ford put C4's behind some 3.3/4.1's in XC's and XD's for extra durability, especially in taxis. Look for ID plates on the transmissions with ID codes starting with 'PEE' or 'PEF' - these are C4's. If they have a 6-cyl bellhousing, you're in luck. Of course, V8 C4's also started with the same code. I think you can just change the bellhousing (and torque converter of course), but trying to find them won't be easy. Just go looking for ex-cabs.

By the way, if the ID code on the plate starts with something like '78DA' (or similar), it's a Borg Warner 35.

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post #6 of 6 (permalink) Old 06-26-04, 03:11 AM
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Re: c4 in crossflows

It is easy to fit a c4 to a crossflow..No adaptors reqd,just get a 6cyl c4 which will have the correct bellhousing.The tailshaft and rear mount is the same..You will need a new flexplate as the BW one is different,cooler lines to match the C4 and a
T-Bar to match the C4 also.
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