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Old 08-04-2006, 01:22 PM   #1 (permalink)
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hydraulic clutch conversion on sm465?

i'm swapping in a big block into my wagoneer along with an sm465 np205 combo. i know that novak has a hydraulic clutch assenbly that will retrofit into the sm465, but have any of you tried to use one of these instead?

http://www.speedwaymotors.com/Search...draulic+clutch
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Old 08-04-2006, 01:35 PM   #2 (permalink)
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I ran the same tranny/transfer combo with a 350 and fabed up the brackets myself. I'm not a engineer by no means, but it was simple. To sum it up I used a clutch slave cylinder from a 80's model chevrolet 3/4. The 350 block I had (yours probably the same) had two 3/4 bolt holes above the oil filter, which I put studs in. I used 2 pieces of 2X2 angle, drilling 1 peice for mounting horizontally to the studs. The other piece was welded to the end of the previous peice of angle vertically. Then welded a flat piece of 3x3 steel to the vertical angle. Took cutting torch and cut out holes for the cylinder to bolt to as well as a hole for the cylinder to come through. Then mounted the slave cylinder and fabed up a linkage rod out of a old push rod. Kinda had to play around with the length to get it right. Hope that helps if your not wanting to pay for the mount. Estimated time spent--> less 1 hour
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Old 08-04-2006, 01:36 PM   #3 (permalink)
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You don't want a hydrolic throw-out bearing IMO. They don't last all that long and are a bloody C-word to change(pull motor or pull trans/tc). Besides, getting a slave to work is the easy part. First, as you saw, novak makes a kit. Second (and even better) GM makes everything you'll need. 1985 GMC Jimmy diesel. They had hydrolic everything (I'm sure there are other trucks too). Get it all right from the dealer $$$

I used a bellhousing from a 1960 C-60 with a 350(good luck finding one of these though). It already had a slave mount on it. I just bought everything for a 1960 truck and built my own. It works great. The hard part was getting the master mounted on the firewall in the right place for good pedal ratio. Anyway, good luck. If you have any questions on any of this, let me know...I'll post it again.
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Old 08-04-2006, 09:58 PM   #4 (permalink)
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85-87 trucks, blazers, and subs all had it.
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Old 08-05-2006, 08:22 AM   #5 (permalink)
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A.A makes one also it is cheaper than buying the bellhousing for the one that had hydro clutch. Mine cost 200 or better when i busted the bellhousing. Think A.A kit only like 170 or so.
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Old 08-05-2006, 06:18 PM   #6 (permalink)
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I used a wilwood pull type cylinder and wilwood master cylinder to do this on my '57. Here's some pics.



The heim end goes ona bracket that bolts to the bellhousing bolts. Sorry, no pics of that bracket. The other end I just bent some 1x.125" flat stock into a u, drilled a hole for the shaft, then cut the shank off a heim end, and welded it between the "u". The heim goes behind the clutch fork, so it pulls against the heim, not the bolt that holds them together. I believe the clutch fork is out of a '69 gmc? Hope that helps. Sorry, I don't have any installed pics.

slave cylinder
http://store.summitracing.com/partde...5&autoview=sku
master cylinder
http://store.summitracing.com/partde...5&autoview=sku
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Old 08-07-2006, 02:59 PM   #7 (permalink)
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i did not think about the hassle it would be change it if it were to brake down, I looked up A.A on Yahoo and came up with Alcoholics Ananomis, how do you contact A.A.?
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Old 08-07-2006, 09:08 PM   #8 (permalink)
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aa= advance adaptors
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Old 08-07-2006, 09:31 PM   #9 (permalink)
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good one,

i will call them tomorrow
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Old 08-08-2006, 02:29 PM   #10 (permalink)
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Just go to the wrecker near you and grabb all you need from a 86' and newer truck. GM made everything you need to convert a mechanical 465 to hydrolic after 86'. Get the clutch/brake peddle assembly (complete), clutch master, hose, bell housing, clutch slave, release arm.
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Old 08-08-2006, 04:08 PM   #11 (permalink)
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I used the willwood pull type also. They use a 3/4" dia master cylinder with it.

Quote:
I used a bellhousing from a 1960 C-60 with a 350(good luck finding one of these though).
You sure that will work on a SM465? They were using sm420's back in 1960. (I have 4 1961 trucks and they all have the 420) I didn't think the bell housings would work...but if they do great...I have a couple around.
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Old 08-08-2006, 06:26 PM   #12 (permalink)
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I've seen a few 60-62 style iron/hydraulic bellhousings with the large (SM465 size) bearing retainer hole. The fork exits, and slave mounts, to the passenger side. Perhaps they were used in the 50, 60 series with a 5-speed like a Clarke or an NP540?
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Old 08-08-2006, 06:54 PM   #13 (permalink)
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I scored a hydro ear factory bellhousing for 50 bucks shipped, bought a slave for an 87 1 ton and used a fork I had form my 2wd fork (welded the hole up so the slave could push it..) Been running it for 2 years and it was all cheap .
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Old 08-09-2006, 09:42 AM   #14 (permalink)
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so basically, i have to score a bell housing from an 86 or later chev truck, with the shift fork, slave, hose, and slave cylinder. will all this be cheaper than getting the kit from novaK?
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Old 08-20-2006, 12:37 AM   #15 (permalink)
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