C4 ford trans help

RobbieRacer · 01-22-2016, 10:10 AM

I need a little help.I'm building the U/SA 79 mustang on the build page. I have a late 60s, 26 spline input, C4 trans that im building for the car. I want to put a low 1st gear set in the tranny and am having a hard time locating new set.Does anyone have a line on who carries them?
Thanks
Robbie

Bill Harris · 01-22-2016, 10:15 AM

Your first call should be to Joel's on Joy. He can probably set you up. However, Pro Trans does make various gear sets for the C4, but your wallet will really feel it. Performance Automatic might have something too. The most common ratio is 2.75, but I know you can get a 2.9x something from Pro Trans.

B/S 428 · 01-22-2016, 10:41 AM

Robbie-26 spline transmission's were built from 1970 to 79ish C4's built in the 60's were 24 spline. ACT transmission.com has low gear sets-FYI I don't run one in my car and it runs pretty well. Brian 627stk

SSGT Mustang · 01-22-2016, 10:45 AM

Dynamic has them, or you can get them from Lyon's (made by dynamic).

http://www.lyonsperformance.com/gear-p-1014.html

SSGT Mustang · 01-22-2016, 11:24 AM

One more thing. If you want to go super light, you can get aluminum drums here for a very good price.

http://www.tcsproducts.com/products/subcategory/c4/

FireSale · 01-22-2016, 12:06 PM

Quote:

Originally Posted by B/S 428

Robbie-26 spline transmission's were built from 1970 to 79ish C4's built in the 60's were 24 spline. ACT transmission.com has low gear sets-FYI I don't run one in my car and it runs pretty well. Brian 627stk

Hi, Brian. Just wanted to thank you and the other Brian for all the help last season. I will see you in the lanes this year.

Dale

RobbieRacer · 01-22-2016, 04:05 PM

Thanks for the help. Got some good leads. I will recount the splines just to be sure.

RobbieRacer · 01-23-2016, 02:19 PM

I ran the numbers and re counted the splines. It's a 1968 C4 with 24 splines. It was a good back up trans, now it's time to build it!

01-22-2016, 10:10 AM	#1
RobbieRacer Member Join Date: Jul 2012 Location: Phoenix, Az Posts: 320 Likes: 17 Liked 118 Times in 41 Posts	C4 ford trans help I need a little help.I'm building the U/SA 79 mustang on the build page. I have a late 60s, 26 spline input, C4 trans that im building for the car. I want to put a low 1st gear set in the tranny and am having a hard time locating new set.Does anyone have a line on who carries them? Thanks Robbie

01-22-2016, 10:15 AM	#2
Bill Harris Member Join Date: Mar 2002 Location: Ooltewah, TN Posts: 421 Likes: 13 Liked 26 Times in 13 Posts	Re: C4 ford trans help Your first call should be to Joel's on Joy. He can probably set you up. However, Pro Trans does make various gear sets for the C4, but your wallet will really feel it. Performance Automatic might have something too. The most common ratio is 2.75, but I know you can get a 2.9x something from Pro Trans. __________________ Bill Harris ex 2172 STK ex 2272 S/S

01-22-2016, 10:41 AM	#3
B/S 428 Junior Member Join Date: Jan 2011 Posts: 87 Likes: 18 Liked 152 Times in 34 Posts	Re: C4 ford trans help Robbie-26 spline transmission's were built from 1970 to 79ish C4's built in the 60's were 24 spline. ACT transmission.com has low gear sets-FYI I don't run one in my car and it runs pretty well. Brian 627stk

01-22-2016, 10:45 AM	#4
SSGT Mustang Member Join Date: Mar 2005 Location: Jersey Posts: 359 Likes: 35 Liked 204 Times in 54 Posts	Re: C4 ford trans help Dynamic has them, or you can get them from Lyon's (made by dynamic). http://www.lyonsperformance.com/gear-p-1014.html

01-22-2016, 11:24 AM	#5
SSGT Mustang Member Join Date: Mar 2005 Location: Jersey Posts: 359 Likes: 35 Liked 204 Times in 54 Posts	Re: C4 ford trans help One more thing. If you want to go super light, you can get aluminum drums here for a very good price. http://www.tcsproducts.com/products/subcategory/c4/

01-22-2016, 04:05 PM	#7
RobbieRacer Member Join Date: Jul 2012 Location: Phoenix, Az Posts: 320 Likes: 17 Liked 118 Times in 41 Posts	Re: C4 ford trans help Thanks for the help. Got some good leads. I will recount the splines just to be sure.

01-23-2016, 02:19 PM	#8
RobbieRacer Member Join Date: Jul 2012 Location: Phoenix, Az Posts: 320 Likes: 17 Liked 118 Times in 41 Posts	Re: C4 ford trans help I ran the numbers and re counted the splines. It's a 1968 C4 with 24 splines. It was a good back up trans, now it's time to build it!