Trans question

[diestech74]

My stock c4 in my 74 has started acting up if I put it in d it won't change gears I can manually shift from 1 to 2 but when I shift to d it won't pull is that a failure or a govner or something it's a vacuum Trans.if it is toast will any c4 work as in just replace the tail shaft out or is the 4x4 a different set up

 

[Viperwolf1]

First check the fluid level. Then check operation in all gear positions.

Bronco C4 is special with all the best factory parts and unique output shaft. Rebuild the one you have if it needs it.

 

[diestech74]

fluid level is good slight discoloring but good level 1st and second both manually shift fine but in drive it dosent pull and if you select d from the start it slips then catches and still dosent shift into 3rd gear

 

[lowbush]

fluid level is good slight discoloring but good level 1st and second both manually shift fine but in drive it dosent pull and if you select d from the start it slips then catches and still dosent shift into 3rd gear

Sounds like the bands may be loose. Viper is right, keep the Bronco C4, you can get a C5 case and put all the internals from your C4 in it and build a better case, but you want to keep your C4 internals and shafts unless you upgrade them with aftermarket ones.

 

[Viperwolf1]

It's not a band problem. Rear band is used in manual 1 and reverse. Front band is used in 2nd gear.

It's a strange problem. It could be a valve body problem or maybe shift linkage is out of adjustment. Maybe try adjusting linkage first.

Block the wheels and set the parking brake. Loosen the linkage nut on the trans lever so the linkage rod can move freely. Move the trans lever to the neutral position. That's 2 clicks down from the park position. Make sure the column is set to the neutral position. You might need to have someone hold it there. Now tighten the linkage nut. You may need to readjust the neutral safety switch (NSS) after this.

Loosen the 2 small bolts holding the NSS. Block wheels and place trans in neutral. Insert small pin (1/16" drill bit) in hole in side of NSS. Adjust NSS body back and forth until pin can be pushed into hole approximately 1/2". Tighten NSS bolts.