c4 auto question?

[BAMF69 11]

What are the differences between a 65 c4 automatic for a 6cyl and a 69 with a 302?

[BAMF69 11]

What are the differences between a 65 c4 automatic for a 6cyl and a 69 with a 302?

[bnickel 10,004]

internally i think they are pretty much the same butthey do have different bellhousinghs. also, there is a pan fill c4 and a case fill c4 i can't remember what year they changed from the pan to the case fill but i want to say it was 67 so that would be another diff as well. and pretty much nothing is interchangeable between the two.

[bnickel 10,004]

internally i think they are pretty much the same butthey do have different bellhousinghs. also, there is a pan fill c4 and a case fill c4 i can't remember what year they changed from the pan to the case fill but i want to say it was 67 so that would be another diff as well. and pretty much nothing is interchangeable between the two.

[351carlo 10]

IIRC, 250 I-6 = same bellhousing as SBF (IE 302, 351, 289, etc)

 

Below is some info, below that is the site it came from. Real good reference.

 

Lots of confusion exists here, but there is the early C4, with its .788" 24 spline input shaft. This tranny is inappropriate for all but the mild small block. The pan fill case, introduced in ’65 is considered stronger than the case fill. The later C4 introduced in ’70 with its .839" 26 spline input shaft is considered the heavy duty unit and is the choice of the builders on this site. This basic HD C4 was again redesigned in 1982 with a convertor clutch (that locks up), a deeper bell housing, a unique valve body, a number of other different internals and named the C5. The C5’s superior oiling circuit includes a number of small differences from the C4 making it the preferred setup of the three as you can replace the C5 convertor, bell and valve body with standard C4 units and have a super duty C4. All three versions can be either case-fill or pan fill.

Of course there are a couple bastard versions you may run across. The ‘65-’66 “green dot†shift pattern valve body versions are in a ton of Mustangs. A good upgrade is to retrofit a ‘67-’69 valve body to those units. A rarer one is the ’70 26 spline version which was a one-year deal. Both ends of the input shaft have 26 splines which was changed to 26 on the converter end and 24 on the forward clutch housing end for all subsequent years.

So the various versions-

C4 - 64-83

· Case fill 24x24 spline {C4 to C9}

· Case fill 26x26 spline {D0}

· Case fill 26x24 spline {D1 to D9, & E1SP)

· Pan fill 24x24 spline {C5 to C9}

· Pan fill 26x26 spline {D0}

· Pan fill 26x24 spline {D1 to D9}

· C5 - 82-86

· Case fill {E2AP only)

· Pan fill {E2TP only}

Bellhousings of course come in several versions. Case fills come with bells that bolt to the pump while pan fills come with bells that bolt to the case. C5 bells are deeper than either of the C4 versions. Most of the time, the case fills use the 157 tooth flywheel and the pan fills use the 164 tooth, but there are exceptions. The best tip I've seen to ID them is to measure the depth. If the depth is 5 7/8" it is a small bell 157t, if it is 6 1/4 is regular bell 164t and if it is 7" it is a c5 bell 164t.

 

http://www.fordmuscle.com/forums/c4-transmissions/monster-c4-thread-text-edited-way-long-version2_9911.html

[351carlo 10]

IIRC, 250 I-6 = same bellhousing as SBF (IE 302, 351, 289, etc)

 

Below is some info, below that is the site it came from. Real good reference.

 

Lots of confusion exists here, but there is the early C4, with its .788" 24 spline input shaft. This tranny is inappropriate for all but the mild small block. The pan fill case, introduced in ’65 is considered stronger than the case fill. The later C4 introduced in ’70 with its .839" 26 spline input shaft is considered the heavy duty unit and is the choice of the builders on this site. This basic HD C4 was again redesigned in 1982 with a convertor clutch (that locks up), a deeper bell housing, a unique valve body, a number of other different internals and named the C5. The C5’s superior oiling circuit includes a number of small differences from the C4 making it the preferred setup of the three as you can replace the C5 convertor, bell and valve body with standard C4 units and have a super duty C4. All three versions can be either case-fill or pan fill.

Of course there are a couple bastard versions you may run across. The ‘65-’66 “green dot†shift pattern valve body versions are in a ton of Mustangs. A good upgrade is to retrofit a ‘67-’69 valve body to those units. A rarer one is the ’70 26 spline version which was a one-year deal. Both ends of the input shaft have 26 splines which was changed to 26 on the converter end and 24 on the forward clutch housing end for all subsequent years.

So the various versions-

C4 - 64-83

· Case fill 24x24 spline {C4 to C9}

· Case fill 26x26 spline {D0}

· Case fill 26x24 spline {D1 to D9, & E1SP)

· Pan fill 24x24 spline {C5 to C9}

· Pan fill 26x26 spline {D0}

· Pan fill 26x24 spline {D1 to D9}

· C5 - 82-86

· Case fill {E2AP only)

· Pan fill {E2TP only}

Bellhousings of course come in several versions. Case fills come with bells that bolt to the pump while pan fills come with bells that bolt to the case. C5 bells are deeper than either of the C4 versions. Most of the time, the case fills use the 157 tooth flywheel and the pan fills use the 164 tooth, but there are exceptions. The best tip I've seen to ID them is to measure the depth. If the depth is 5 7/8" it is a small bell 157t, if it is 6 1/4 is regular bell 164t and if it is 7" it is a c5 bell 164t.

 

http://www.fordmuscle.com/forums/c4-transmissions/monster-c4-thread-text-edited-way-long-version2_9911.html

[BAMF69 11]

You lost me there for a minute, Im asking because I can get a almost free rebuilt 65 c4 transmission of a 6cyl mustang since it's getting a 351w and a t5 tranny so it's just taking space.

 

Should i get it for the price? I have another c4 i can get the bell from so i don't think that's a problem if they interchange.

[BAMF69 11]

You lost me there for a minute, Im asking because I can get a almost free rebuilt 65 c4 transmission of a 6cyl mustang since it's getting a 351w and a t5 tranny so it's just taking space.

 

Should i get it for the price? I have another c4 i can get the bell from so i don't think that's a problem if they interchange.