C4 upgrades

[grinnergetter]

Does anyone have links etc. that might provide what C4 upgrades are necessary for various HP increases? I found a few articles regarding some upgrades and a few that have disappeared.

Or maybe you already know...doing my research for now.

 

[76YETI]

Bottom left of the main page...Bronco Tech https://classicbroncos.com/tech/improving-the-c4-automatic

 

[grinnergetter]

Thats the first article i found. Does anyone have that original burly4x4 article handy?

Thanks

 

[Viperwolf1]

Thats the first article i found. Does anyone have that original burly4x4 article handy?

Thanks

I believe this is what you're looking for.

 

[Rustytruck]

Viper,
Do you have the compiled parts list you once posted many moons ago?

 

[Viperwolf1]

Viper,
Do you have the compiled parts list you once posted many moons ago?

This is a starting point for a stock rebuild.

26006C Master kit, C-4 1970-81 combo kit 1 $62.72
B26022 Band C4 / C5 Intermediate 1 $9.78
N26024 Band C-4 / C-5 rear low / reverse 1 $29.02
26064 Bushing C4 / C5 case 1 $2.03
A26010D Filter, C4 Bronco 4wd 1973-77 1 $5.28
26160G Modulator: C4 / C5 GREEN stripe Push-in 1974-86 1 $14.93
A26912 Piston, Rear servo, C4 / C5 1 $8.66
A26654K Sprag kit, C4 / C5 Spring & roller kit 1 $7.72
26200C Thrust washer kit, C4 / C5, 1970-86, 1 $27.01
F48 Converter, C4 Late 12 inch , 26 input spline 1 $126.74
T26165F TransGo Shift Kits C4 / C5 73-86 1 $21.86

This is the minimum you should expect to replace on a complete rebuild. Shift kit is optional.

 

[Rustytruck]

Thank you

 

[grinnergetter]

Thanks Viper....much appreciated!

 

[pennyduke]

I just rebuilt my C4 and used the site below. They take a while to respond but they really know the C4 Transmission.

https://www.fordmuscleforums.com/c4-transmissions/

 

[grinnergetter]

Thanks pennyduke….great link!

Anyone tried the Teflon rings( I think) on servos? Mine has one bad spot smaller than a pencil. Better off to machine and sleeve?