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mid 60's 4 speed
#1125786 09/23/2015 3:21 PM
Joined: Mar 2003
Posts: 93
Kelowna , British Columbia , C...
4
47 chev
Offline
'Bolter
47 chev
'Bolter
4 Offline
Joined: Mar 2003
Posts: 93
Kelowna , British Columbia , C...
I would like to get rid of the closed drive line on my 50 1/2 ton. Will a mid 60's/70's chev truck 4 speed bolt onto the existing 235 with torque tube 3 speed ? The plan is to use a 4 speed transmission and a Colorado 3.42 rear axle.
Thanks guys
Re: mid 60's 4 speed
47 chev #1125787 09/23/2015 3:34 PM
Joined: Sep 2001
Posts: 29,269
Jarvisburg, NC, USA
tclederman Offline
Bubba - Curmudgeon
tclederman
Bubba - Curmudgeon
Offline
Joined: Sep 2001
Posts: 29,269
Jarvisburg, NC, USA
"Will a mid 60's/70's chev truck 4 speed bolt onto the existing 235 with torque tube 3 speed ?"
It depends on the 4-speed.

I think that the open drive-shaft SM420 4-speed was made up to 1967.

Other people will post information for higher-geared 4-speed/5-speed transmissions that will/might bolt up to you clutch housing.

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.
Re: mid 60's 4 speed
47 chev #1125854 09/23/2015 9:39 PM
Joined: Jun 2004
Posts: 8,597
Overland Park, Ks.
W
Wrenchbender Ret. Offline
Riding in the Passing Lane
Wrenchbender Ret.
Riding in the Passing Lane
W Offline
Joined: Jun 2004
Posts: 8,597
Overland Park, Ks.
67 on back 4 speed will bolt up to the bell housing.

They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum
Re: mid 60's 4 speed
47 chev #1125914 09/24/2015 2:32 AM
Joined: Jun 2011
Posts: 5,096
Longmont, CO
E
EdPruss Offline
Crusing in the Passing Lane
EdPruss
Crusing in the Passing Lane
E Offline
Joined: Jun 2011
Posts: 5,096
Longmont, CO
465 started in '68. There are not 'higher geared' 4 speeds(4th is direct)unless a T-5, or NP-540 series 5 speed, OD version.

'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.

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