4l60e went BOOM
10-18-2011, 01:09 PM
#11
While yes in the forums you hear about built units breaking it seems alot bear in mind people dont generally post how good there unit is working they only post when they break 
And to give you some idea of just how many are out there we ourselves have over 2300 units out there im sure many other venders have similar or higher numbers. So take "ALWAYS SEEING THEM BREAK" with a grain of salt as it it realive to numbers, As to the OP I would agree something in the input drum or front planet seems likley.
And to give you some idea of just how many are out there we ourselves have over 2300 units out there im sure many other venders have similar or higher numbers. So take "ALWAYS SEEING THEM BREAK" with a grain of salt as it it realive to numbers, As to the OP I would agree something in the input drum or front planet seems likley.
10-18-2011, 01:27 PM
#12
wouldn't that prevent the truck from having reverse and park? because then the shaft would just spin...
i don't claim to know how the internals of an auto trans work, but from all the threads i've read about the 4l60e it seems that the sprag or the input drum are the likely culprits here.
sleeper mentioned gear ratio playing into it, i have 3.42's out back, and since its 4wd i don't wanna spend $1k or more on a gear swap.
i don't claim to know how the internals of an auto trans work, but from all the threads i've read about the 4l60e it seems that the sprag or the input drum are the likely culprits here.
sleeper mentioned gear ratio playing into it, i have 3.42's out back, and since its 4wd i don't wanna spend $1k or more on a gear swap.
10-18-2011, 02:59 PM
#13
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While yes in the forums you hear about built units breaking it seems alot bear in mind people dont generally post how good there unit is working they only post when they break And to give you some idea of just how many are out there we ourselves have over 2300 units out there im sure many other venders have similar or higher numbers. So take "ALWAYS SEEING THEM BREAK" with a grain of salt as it it realive to numbers, As to the OP I would agree something in the input drum or front planet seems likley.
And to give you some idea of just how many are out there we ourselves have over 2300 units out there im sure many other venders have similar or higher numbers. So take "ALWAYS SEEING THEM BREAK" with a grain of salt as it it realive to numbers, As to the OP I would agree something in the input drum or front planet seems likley.Usually its the front end of the output shaft that breaks.. this is where 1st 2nd and 3rd gear are operated from. Reverse spins the rear end of the output shaft. if you have seen a pic of an output shaft there are 2 sets of splines... the break is usually in the middle allowing for reverse to still be operational...but lots of vibrations are felt..
10-18-2011, 11:05 PM
#15
i would agree with this. it shifted fantastically, left about 10ft of rubber on the 1-2 shift, and the 2-3 was very quick with a nice firm bump. no signs of anything bad at all, just suddenly, boom.
ah, ok. now that makes sense. guess we'll find out once i get it back to the builder.
ah, ok. now that makes sense. guess we'll find out once i get it back to the builder.
10-19-2011, 06:21 AM
#16
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well, it seems alot of you guys were correct. i pulled the transfer case last night, and then i pulled the remains of the output shaft out right behind it.
just gotta borrow a trans jack so i can take it out of the truck, and then pack it up for shipping.
just gotta borrow a trans jack so i can take it out of the truck, and then pack it up for shipping.
10-19-2011, 08:36 PM
#19
So how many miles did your tranny have on it. Mine had less than 8k and only 5 track passes. I know crap happens and parts can break, it just sucks when your the guy that it breaks on and you gotta pay an assload to get it fixed under warranty. When other guys make ALOT more power and have years on thier trannies with tons of track passes and they dont break.
