transmission question
6th Gear Member
Joined: Dec 2005
Posts: 5,212
From: Hills of California
RE: transmission question
well I got rid of my stock shifter some time ago but i member the green dot (start in 2nd then 3rd) was below drive.....hell i might be wrong ...im still pretty sure its a c4
3rd Gear Member
Joined: Nov 2007
Posts: 630
From: OREGON
RE: transmission question
C-4 was the most common and used primarily on SMALL BLOCK engines (280/289/302/351w)
It's housing is aluminum
The FMX also made a few appearences in Mustangs, mostly in the Grande or upper scale models due to it's smoother shifting.
The C-6 was mostly mated to BIG BLOCKS due to the fact of it having a cast-iron housing The big block with higher horsepower could better overcome the weight.
The only way I know how to tell the difference by just looking is to look at the transmission pan, count the number of bolts or look at the shape of the pan itself.
Here
1. C3 Rectangular pan w/13-15 bolts.Can also have a slight buldge on front pass. side. Used on 4 cyl & V6s only.
Strictly light duty applications. Not an overdrive tranny. Makes a good boat anchor. Shift pattern = P-R-N-D-2-1
2. C4 Built from 1964 - 1981 17.18" long overall. C4 bell housing is removeable, C6 is not.
Rectangular, almost square pan ( 10" X 9") with slight buldge on front pass. corner. Pan has 11 bolts.
5.0L engines tended to have C4s not C6s.
Not an overdrive tranny. Fairly robust unit. Can take a fair amount of power. Eats about 60 less HP than a C6.
3. C5 Built from 1982 - 1986 Case length same as C4 but pan has a hump in it whereas the C4 has a flat pan.
Not an overdrive tranny. Not even that widely used. Avoid.
4. C6 Built from 1966 - 1979 20" long overall including integral bellhousing. -
1966 - 75 have rectangular pan with 17 bolts & long measurement on front and rear edges. Shorter on sides. -
Can have recess on rear pass.corner or slight buldge on pass side near rear edge & 15 bolts.
P1966-75 pan = 1"-1.5" deep. 1975+ pan = 1.75" - 2.0" deep and 4X4 pan 3" deep in center.
Small blocks and big blocks have different bellhousings. 3 different castings total.
P-R-N-D-1-2 pattern. Good, heavy Duty 3 speed Auto, but without OD. Gets 3 thumbs up.
It's housing is aluminum
The FMX also made a few appearences in Mustangs, mostly in the Grande or upper scale models due to it's smoother shifting.
The C-6 was mostly mated to BIG BLOCKS due to the fact of it having a cast-iron housing The big block with higher horsepower could better overcome the weight.
The only way I know how to tell the difference by just looking is to look at the transmission pan, count the number of bolts or look at the shape of the pan itself.
Here
1. C3 Rectangular pan w/13-15 bolts.Can also have a slight buldge on front pass. side. Used on 4 cyl & V6s only.
Strictly light duty applications. Not an overdrive tranny. Makes a good boat anchor. Shift pattern = P-R-N-D-2-1
2. C4 Built from 1964 - 1981 17.18" long overall. C4 bell housing is removeable, C6 is not.
Rectangular, almost square pan ( 10" X 9") with slight buldge on front pass. corner. Pan has 11 bolts.
5.0L engines tended to have C4s not C6s.
Not an overdrive tranny. Fairly robust unit. Can take a fair amount of power. Eats about 60 less HP than a C6.
3. C5 Built from 1982 - 1986 Case length same as C4 but pan has a hump in it whereas the C4 has a flat pan.
Not an overdrive tranny. Not even that widely used. Avoid.
4. C6 Built from 1966 - 1979 20" long overall including integral bellhousing. -
1966 - 75 have rectangular pan with 17 bolts & long measurement on front and rear edges. Shorter on sides. -
Can have recess on rear pass.corner or slight buldge on pass side near rear edge & 15 bolts.
P1966-75 pan = 1"-1.5" deep. 1975+ pan = 1.75" - 2.0" deep and 4X4 pan 3" deep in center.
Small blocks and big blocks have different bellhousings. 3 different castings total.
P-R-N-D-1-2 pattern. Good, heavy Duty 3 speed Auto, but without OD. Gets 3 thumbs up.
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