How deep should the reverse input drum be?
Thread Starter
Staging Lane
Joined: Sep 2014
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How deep should the reverse input drum be? My trans is all back together and working fine so far. But I’ve only Put a few miles on it. I was just second guessing something the whole time. I fought and fought dropping the whole input assembly into the transmission and was never sure if every clutch went over the splines. I tried a few times and always had the same result... about 1/4” below the shelf where the pump bolts thread into. Every picture I seen looked deeper to me but it was hard to tell. After bolting the pump in, I had .015” end play and the pump seemed to install nicely. Is it possible that one clutch plate did not go over the splines or would that make the drum too high for the pump to bolt in correctly and everything turn freely? Thanks
Thread Starter
Staging Lane
Joined: Sep 2014
Posts: 59
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Thats what I figured too. I didnt think there would be any endplay if that was the case, and I didn’t think the input shaft would turn. I just could not tell if it was down over that last clutch. Hoping anything below flush with the pump shelf is ok.
Last edited by field57; Jul 15, 2019 at 08:37 PM.
TECH Junkie
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From: Iowa
If you don't catch all the clutches you won't be able to bolt the pump down
well...you CAN...but you'll know it isn't right. Because to bolt it down, you'll be bending the inner teeth of the clutches.
So...the fact that the pump bolted down and you had endplay means you're ok
well...you CAN...but you'll know it isn't right. Because to bolt it down, you'll be bending the inner teeth of the clutches.
So...the fact that the pump bolted down and you had endplay means you're ok
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From: Nitro Alley
If you don't catch all the clutches you won't be able to bolt the pump down
well...you CAN...but you'll know it isn't right. Because to bolt it down, you'll be bending the inner teeth of the clutches.
So...the fact that the pump bolted down and you had endplay means you're ok
well...you CAN...but you'll know it isn't right. Because to bolt it down, you'll be bending the inner teeth of the clutches.
So...the fact that the pump bolted down and you had endplay means you're ok
Yup!
To the OP... MaroonMonsterLS1 is on the money as usual! :-) So give him and the other guys some thanks please. :-) We have feelings too. LOL!
These Units almost always have stupid amounts of end-play unless you purchase aftermarket shims from Sonnax of come up with your own shim solution.
Should you assemble the unit with the pump torqued down and find a small amount of end-play or no end-play... than some of the reverse input clutches are not on the aluminum input drum splines completely as you feared...
You will know the unit is completely assembled correctly when you measure end-play at the turbine-shaft and have some stupidly huge 35+ thousandths or more of end-play LMAO!
Thread Starter
Staging Lane
Joined: Sep 2014
Posts: 59
Likes: 0
Yup!
To the OP... MaroonMonsterLS1 is on the money as usual! :-) So give him and the other guys some thanks please. :-) We have feelings too. LOL!
These Units almost always have stupid amounts of end-play unless you purchase aftermarket shims from Sonnax of come up with your own shim solution.
Should you assemble the unit with the pump torqued down and find a small amount of end-play or no end-play... than some of the reverse input clutches are not on the aluminum input drum splines completely as you feared...
You will know the unit is completely assembled correctly when you measure end-play at the turbine-shaft and have some stupidly huge 35+ thousandths or more of end-play LMAO!
To the OP... MaroonMonsterLS1 is on the money as usual! :-) So give him and the other guys some thanks please. :-) We have feelings too. LOL!
These Units almost always have stupid amounts of end-play unless you purchase aftermarket shims from Sonnax of come up with your own shim solution.
Should you assemble the unit with the pump torqued down and find a small amount of end-play or no end-play... than some of the reverse input clutches are not on the aluminum input drum splines completely as you feared...
You will know the unit is completely assembled correctly when you measure end-play at the turbine-shaft and have some stupidly huge 35+ thousandths or more of end-play LMAO!
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From: White Bear, Mn
Like mentioned in post #4, you would not be able to bolt the pump in.
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Staging Lane
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