Hey guys, been doing some research on some issues im having with the truck and came to the conclusion that my clutch may need to be replaced or adjusted? before going any further, i wanted to get yall's input.

- im noticing when i shift into my 3rd and 4th gear at low rpms, my rpms are jumping more drastically than my speed....was wondering if this was a sure shot sign of slippage or should i do more research?

I put the e-brake on and shifted into 4th to see if it would bog out when pressing the gas and it did, but barely...my clutch pedal was almost fully released....


has anyone adjusted the clutch on these trucks? or should i just bypass that and just replace it?

 

What about first gear full throttle any slipping there .

 

no slipping on 1 or 2nd...?

 

If it isn't slipping in 1st or 2nd it sure as hell ain't slipping in 3rd or 4th.

 

any thoughts on what else it could be?

 

might be engine related Are you running the 22re .

 

yeah the 22re

 

So it jumps around in third and fourth as in feels bogged and lack of power ?
Cruising in fourth with little to no load on the motor start to act up ?
How big are the rpm jumps few 100 rpms or so <

 

feels boggy in third and fourth at low rpms, at that point i go full throttle and notice the rpm jump, just a couple hundred.....

 

Mas air sensor maybe be faulty or be leaking inbetween it and the throttle body kinda of weird situation don't think it would be timing issue

 

So, I read on the 4x4 forums that 3rd n 4th would be the first gears to start slipping on a bad clutch?? Can anyone here vouch for that? Still having this issue...

 

If the clutch was slipping the tach would jump much higher than a couple hundred rpm and it would do it MUCH more in 1st and 2nd.

 

Is there anywhere else I should look? The jumping increased to almostv2k rpm jump..

 

But 1st n 2nd gears are still good, only issue with those gears are its kind of stiff when going to into 1/2 gear

 

If you can do a burnout it's not the clutch. Are you watching the factory tach or is it aftermarket?

 

Maybe you have a bad pressure plate broken springs possible a failing throw out bearing stiff 1st and second as in forcing it into gear or stubborn to get into gear if your suspecting that the clutch is causing all these problems id pop a new one in there and a throw out bearing you may be experiencing some clutch engaged while driving problem at speed which is weird but not un herd of

 

It might not be the easiest but I think the best thing to do is drop the trans. I suspect it is a worn clutch plate. You have to remember on a 4x4 the gear ratio on the rear end is lower so your power band is different than a 2 wheel drive truck. 3rd and 4th gears might have more stress than 1st and 2nd. I'm no expert so let me ask my friend who is a Toyota 4x4 guru and I'll get back to you shortly.

 

i'm having the same problem with mine too, looking for a cheap new clutch online with no luck yet, not as cheap as the parts store down the way. since we on the subject of clutches, i have the 22r in my 89 2wd and i need to know what the spline diameter, the spline count, and the overall disc diameter?

 

when ordering a clutch kit you don't need a spline count or diameter.None of that just be specific with 4x4 or 2wd.All 22r-re clutches are the same just the 4x4 are heavier duty.I just swapped out the clutch on my 4x and they have a lot of choices from $60 -$200.I didn't want to go super cheap (cuz it was a b!tch to drop that 4x transfer case and trans) so I spent like $140 shipped.Came with throw out bearing, pressure plate,disc and the dick that helps guide it in.

 

You need a clutch. Textbook symptoms, despite some ignorance still floating around the internet.

Sources for clutches. Main ones I can think of are: Marlin crawler has some VERY nice clutches, not the cheapest though. Rock Auto has most of the stuff the brick & mortar stores have at 1/2 the price (still cheaper after shipping). Of course there are a million on ebay but good luck with customer support and warranty issues

I know it's counterintuitive but high gears will slip before low gears when the clutch is bad. The reason is that in the lower gears, you have a shorter gear ratio AFTER the clutch and more of the torque being applied goes to acceleration. it isn't usually noticed in 5th because you're too low in the powerband at legal speeds to overpower the clutch. 3rd and 4th are in the powerband with enough resistance. 1st and 2nd are too little resistance to slip...at first. I've been in several vehicles, some my own, with bad clutches and trust me, that's how it works.

By some people's logic (lower gears slipping more) a bad clutch would eventually make it impossible to start moving BUT if you get moving be able to hit max speed (and thus max resistance)

If you want to test it, the put it in 4th or 5th with the ebrake test should be done quickly releasing the clutch fully with heavy throttle. You won't hurt anything by stalling the engine. You're doing more damage by slowly releasing it and letting it slip.

Another test you can do is get up past 3500rpm driving in 4th, then floor it for 2-3 seconds, then release. A bad clutch will allow the engine to rev up faster than speed increases then drop back down when you let off the gas.