Breaking a 3 spd tranny from the engine - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dubie · 02-14-2003, 12:17 PM

I was just thinking about this and had a couple questions

I know with an automatic, you remove the flywheel cover, remove the flywheel bolts, then remove the tranny bolts and break the 2 apart. But with a manual tranny, are there any extra steps? I have heard that there is a release bearing to watch out for?? Any ideas on this guys? Oh, I will be splitting a 3 spd from a 250 inline and then bolting the tranny onto a 350.
Thanks guys

Brad · 02-14-2003, 12:56 PM

Sounds like you've messed with removing trannys before? You shouldn't have any problems. I've done this but can't give you any specifics. It's pretty basic, nothing you should look out for.

dubie · 02-14-2003, 01:03 PM

I used to work as an auto wrecker. Oh I mean auto recycler

gotta be politically correct

Thanks Brad

Gordo · 02-14-2003, 01:40 PM

The 350 will require a pilot bushing in the back of the crankshaft if the engine was not previously set up for a standard trans, and even if it was, it would be a good thing to replace it anyway.

O'l Buck · 02-14-2003, 01:52 PM

Pulling a manual trans is basically the same as pulling an automatic. Only you don't have to mess with the tranny cooler lines. You get a choice of pulling it with or without the bell housing. The only thing that might give you problems is the clutch release bearing, it could hang up on the input shaft it you pull the tranny away from the bell housing. If you take bell housing and all, the only thing you have to worry about is the input shaft sliding easily out of the splines in the clutch. (They don't usually give too much trouble in a car or pickup, but I've seen them stick in big trucks and they are a bear when that happens)........I always put a little anti-seize on the splines when I put them back together for easier installation and to prevent the stuck input shaft problem.

02-14-2003, 12:17 PM	#1
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	Breaking a 3 spd tranny from the engine I was just thinking about this and had a couple questions I know with an automatic, you remove the flywheel cover, remove the flywheel bolts, then remove the tranny bolts and break the 2 apart. But with a manual tranny, are there any extra steps? I have heard that there is a release bearing to watch out for?? Any ideas on this guys? Oh, I will be splitting a 3 spd from a 250 inline and then bolting the tranny onto a 350. Thanks guys __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

02-14-2003, 12:56 PM	#2
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,673	Sounds like you've messed with removing trannys before? You shouldn't have any problems. I've done this but can't give you any specifics. It's pretty basic, nothing you should look out for. __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...

02-14-2003, 01:03 PM	#3
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	I used to work as an auto wrecker. Oh I mean auto recycler gotta be politically correct Thanks Brad __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

02-14-2003, 01:40 PM	#4
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	The 350 will require a pilot bushing in the back of the crankshaft if the engine was not previously set up for a standard trans, and even if it was, it would be a good thing to replace it anyway. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

02-14-2003, 01:52 PM	#5
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	Pulling a manual trans is basically the same as pulling an automatic. Only you don't have to mess with the tranny cooler lines. You get a choice of pulling it with or without the bell housing. The only thing that might give you problems is the clutch release bearing, it could hang up on the input shaft it you pull the tranny away from the bell housing. If you take bell housing and all, the only thing you have to worry about is the input shaft sliding easily out of the splines in the clutch. (They don't usually give too much trouble in a car or pickup, but I've seen them stick in big trucks and they are a bear when that happens)........I always put a little anti-seize on the splines when I put them back together for easier installation and to prevent the stuck input shaft problem. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska



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