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I need to change the clutch on my 1993 F150, manual 4x4 and need to ID my gearbox, its has a sticker saying F1TA GC B090976 I cant make that match with anything, as far as I understand there is a Mazda and a Borg box, so Experts, what gear box do my old trusty F150 have?
Check clutch pedal assembly bushings. If they are worn or broken, they may cause one to think its a bigger problem and common enough at this age to be a problem! Just something else to look at before!
Last edited by 90project5.0; Feb 1, 2026 at 11:54 AM.
Thanks , I will make sure to check them, what should I look for? it seems like the clutch is not engaging properly, but it comes and goes, I changed the master cylinder that did not help
For the bushings, you’re looking for play in the pedal or “sticking/binding” feeling. The bushings are where the pedal attaches to the cross shaft on the assembly. Randomly going in and out, you know the master cylinder is bled good? They are a real pain to do.
It could also be the internal slave cylinder. Do you have any fluid leaking on the slave cylinder?
I have had a bad slave cylinder be sticky from age and cause occasional "slipping clutch " feel. You can get a whole setup pretty cheap.
This is the one I have in my 95. Works great, I also replaced the flywheel with a LUK brand. Been in for a few years now, and is good quality.
As an added bonus, if you get all-thread in i think 7/16-14 thread pitch ( bell housing bolt size) and about 7 to 9 inches long, and put matching nuts ( one on each piece of all-thread) at the firewall end. Then remove a bellhousing bolt (one on either side of the transmission). Thread in the all-thread a decent amount. You can then remove the other bolts and slide the transmission back enough to replace parts while using the jack to support the weight. Then slide the transmission back into place easily as the all-thread guides it back to the engine. I do this for just about every vehicle that needs clutch or torque converter work.
would this be 5 gears or 4 with overdrive?
