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05-07-2010, 10:22 PM
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#1 |
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Registered User
Join Date: Sep 2007
Location: creedmoor n.c.
Posts: 188
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Thinking about a 4 speed manual
im thinking of replacing my th350 with a 4 speed . i know i will need the clutch pedal assembly & fly wheel . what else should i know before attempting this swap.
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05-07-2010, 10:30 PM
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#2 |
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Registered User
Join Date: Nov 2008
Location: Petersville KY
Posts: 673
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Re: Thinking about a 4 speed manual
I'm planning on doing the same swap on my 67, so I'm interested in this also. I'm guessing the crossmember and drive shaft from a 4 speed truck as well?
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Rob 72 C/10 (under reconstruction)(destruction ? LOL) 48 Willys CJ2A 1952 Super "A" Farmall (Grandfather's) |
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05-07-2010, 10:51 PM
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#3 |
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Registered User
Join Date: Oct 2002
Location: Parksville, B.C. Canada
Posts: 637
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Re: Thinking about a 4 speed manual
I'm in the process of doing this myself, (my 69 was an auto,but I found a 3 speed saginaw floor shift for it) You'll need the z-bar and brackets,clutch rods and springs and clutch pedal, and one of the brackets need to bolt to the engine block on the drivers side, so the block has to have the threaded holes in it, and the frame needs to have the bracket that the other end of the z-bar ball stud fits into. Hope this helps, sorry no pics, let us know how it turns out.
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1969 G.M.C 3/4 Ton 920 (Canadian Version) 307 3 speed, currently apart 1998 Chevy 1/2 ton ex cab V-6 5 speed 1967 Chevy SWB - project truck; not started just yet |
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05-07-2010, 11:59 PM
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#4 |
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Registered User
Join Date: May 2010
Location: Rock Hill, SC
Posts: 14
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Re: Thinking about a 4 speed manual
i changed my 71 from a 3 on a tree to a four on the floor and i really enjoy it! i installed a hurst competion plus with a saginaw 4 speed transmission. definetly go with the change.
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05-08-2010, 12:14 AM
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#5 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,852
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Re: Thinking about a 4 speed manual
You can use the auto cross member with a car 4spd.I`m installing a Muncie M22 and it has the rear mount that sits right where the TH350/400s mount.You will need all the clutch linkage from a V8 truck.I am using an aluminum car bellhousing since no intermediate mount is needed.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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05-08-2010, 12:14 AM
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#6 |
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Registered User
Join Date: Jan 2009
Location: Aurora,Il ..born,raised and still live in the same house
Posts: 286
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Re: Thinking about a 4 speed manual
i had a 72 with a 4 on the floor and loved it!
now i'm just looking forward to an overdrive 700r in my 71 longhorn (putting a manual 4 speed is always in the back of my mind, ha ha) |
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05-08-2010, 12:45 AM
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#7 |
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Registered User
Join Date: May 2010
Location: Rock Hill, SC
Posts: 14
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Re: Thinking about a 4 speed manual
haha the ball joint in the z bar broke on my truck today! where do you suppose i could get another one?
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1971 Chevrolet C/10 ShortBed 1978 Chevrolet K/5 Blazer 1986 Chevrolet Silverado ShortBed |
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05-08-2010, 02:39 AM
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#8 |
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fat old dude
 
Join Date: Feb 2010
Location: fresno, california
Posts: 1,424
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Re: Thinking about a 4 speed manual
my 4 speed had the starter bolted to it.
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05-08-2010, 08:24 AM
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#9 | |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,852
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Re: Thinking about a 4 speed manual
Quote:
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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05-08-2010, 09:12 AM
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#10 |
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optomistic ah-so
Join Date: Mar 2009
Location: Charlotte, NC
Posts: 544
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Re: Thinking about a 4 speed manual
If getting the whole Z-bar works seems expensive or daunting to you, there are aftermarket hydraulic throwout bearings that just involve a line running into the bellhousing opening for the unused linkage, and a racing style clutch pedal and clutch cylinder added to the firewall. Speedway Motors has the parts.
This is just an option, some people like it some don't and some want a specific look or theme for the vehicle.
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Rubbing is Racin' Ribbing is Bench Racin' 1970 C-10 lwb Fleetside. Originally 350 2-bbl 3-on-the-tree, m/b, m/w, m/s no a/c. Currently running on a '76 Camaro 305. 
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05-08-2010, 09:23 AM
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#11 |
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My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: Thinking about a 4 speed manual
Everthing should fall into place except that bell crank (Z bar). Was yours ever a 4 speed? The Z bar might be left behind. What was most tough for me was the relocation of it. My truck had a 6 cyl and I had to take a torch and very carefully cut the rivots out since they were in fact rivots. Had to relocte it farther back but she's like butter now. Like Special K....I went with that Muncie M-22.
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05-08-2010, 11:22 PM
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#12 |
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Registered User
Join Date: Jun 2007
Location: Texas
Posts: 63
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Re: Thinking about a 4 speed manual
The most fun I ever had was in a 69 El Camino with a 327 and a four speed. Well, maybe not the most fun, but I remember it well.
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