how hard to convert from 4spd w/granny to a real useable 4spd - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72gmc1/2ton · 04-08-2002, 11:22 PM

can it be done? what has to be done? thanks

69 longhorn · 04-08-2002, 11:46 PM

2 WD truck?

72gmc1/2ton · 04-08-2002, 11:48 PM

ya 2wd v-8

69 longhorn · 04-08-2002, 11:59 PM

You can bolt a saginaw 4spd ,or M 20/21 muncie to the bell. Pilot hole size will be different. On the saginaw trans,you can use the front bearing retainer/throw out collar from a sag 3 spd. On the Muncie,you can have a ring made to press over the OD of the bearing retainer,or use a 67 or earlier bell for proper center hole size. You can also use the M22,& Borg T 10,but may have to change the clutch(spline count). You will need the drive shaft from a 3 spd stick,or a 350 T auto truck,& whatever you choose to use for a shifter. the bottom trans to bell bolts will go through from the inside, & have to have a nut..........69 longhorn

*Fast68Chevy* · 04-09-2002, 02:15 AM

anytihng can be done, just depends on how bad you want to do it, IE how much headache you like to enjoy

try and get a 4 speed with 10 spline input to save a little bit of headache, most of the headache wil be from the driveshaft fab work unless you find a 3 speed manual(Sm318) or th350 67-72 truck with same engine as yours has in same location with same engine trees- for parts,
dont trash that ch465 tranny though! damn good tranny

good luck

------------------
Randy- Lincoln, IL
r68c30@hotmail.com

71 C-10, trying to assemble....sigh..
parting out 5.0LTPI '81 cutlass supreme brougham
*Paint is overrated
© RSS Enterprises 2000

04-08-2002, 11:22 PM	#1
72gmc1/2ton Registered User Join Date: Feb 2002 Location: englewood co usa Posts: 94	how hard to convert from 4spd w/granny to a real useable 4spd can it be done? what has to be done? thanks

04-08-2002, 11:46 PM	#2
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	2 WD truck? __________________ http://community.webshots.com/user/hotrodhorn

04-08-2002, 11:59 PM	#4
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	You can bolt a saginaw 4spd ,or M 20/21 muncie to the bell. Pilot hole size will be different. On the saginaw trans,you can use the front bearing retainer/throw out collar from a sag 3 spd. On the Muncie,you can have a ring made to press over the OD of the bearing retainer,or use a 67 or earlier bell for proper center hole size. You can also use the M22,& Borg T 10,but may have to change the clutch(spline count). You will need the drive shaft from a 3 spd stick,or a 350 T auto truck,& whatever you choose to use for a shifter. the bottom trans to bell bolts will go through from the inside, & have to have a nut..........69 longhorn __________________ http://community.webshots.com/user/hotrodhorn

04-08-2002, 11:48 PM	#3
72gmc1/2ton Registered User Join Date: Feb 2002 Location: englewood co usa Posts: 94	ya 2wd v-8

04-09-2002, 02:15 AM	#5
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	anytihng can be done, just depends on how bad you want to do it, IE how much headache you like to enjoy try and get a 4 speed with 10 spline input to save a little bit of headache, most of the headache wil be from the driveshaft fab work unless you find a 3 speed manual(Sm318) or th350 67-72 truck with same engine as yours has in same location with same engine trees- for parts, dont trash that ch465 tranny though! damn good tranny good luck ------------------ Randy- Lincoln, IL r68c30@hotmail.com 71 C-10, trying to assemble....sigh.. parting out 5.0LTPI '81 cutlass supreme brougham *Paint is overrated © RSS Enterprises 2000



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