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79 Concord 4 speed

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matty 401 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote matty 401 Quote  Post ReplyReply Direct Link To This Post Topic: 79 Concord 4 speed
    Posted: Sep/22/2020 at 7:48pm
looking for a clutch for my son's Concord  has anybody put the 4.0 set up  in one and used the regular linkage  you can get a flywheel and clutch kit for the 4.0 that should bolt up to the 258 and the spline count is the same on the trans 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tomj Quote  Post ReplyReply Direct Link To This Post Posted: Sep/22/2020 at 11:00pm
It's not clear what you are asking for. What transmission? Is this a replacement for an existing setup? Research on a new installation? 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote matty 401 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/23/2020 at 5:54am
looking for a clutch it is a factory 4 speed car 



Edited by matty 401 - Sep/23/2020 at 10:11am
72 matador 401 the beast
79 concord 2 door
72 matador 304 grasshopper
68 Rogue 360
93 Cherokee 2wd 4.0 5 speed
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farna Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2020 at 6:35am
The four speed in a 1979 is an SR-4 and was barely adequate for a 258 six. It was used behind a 304 in the Spirit AMX (only in Spirit body, and I think only AMX... but may be wrong there), but really wasn't strong enough for ANY horse-play at all. I've seen a few worn out SR-4s in Spirits with 258s in them, though they are rather high mileage (80-100+K.. not high mileage for today's cars, but was back then). Those cars had been fairly abused by youngsters though. If it was driven normally and only abused on occasion it should be... adequate. I wouldn't put a 4.0L in front of one though. If you do a 4.0L swap you need a WC T-5 or the BA10/5 (which is fine for a light street car, barely adequate for a truck... close to the strength of the WC T-5, stronger than a Non WC T-5) or AX-15 (strongest!) that came with the 4.0L.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Buzzman72 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2020 at 9:14am
Originally posted by farna farna wrote:

The four speed in a 1979 is an SR-4 and was barely adequate for a 258 six. It was used behind a 304 in the Spirit AMX (only in Spirit body, and I think only AMX... but may be wrong there), but really wasn't strong enough for ANY horse-play at all. I've seen a few worn out SR-4s in Spirits with 258s in them, though they are rather high mileage (80-100+K.. not high mileage for today's cars, but was back then). Those cars had been fairly abused by youngsters though. If it was driven normally and only abused on occasion it should be... adequate. I wouldn't put a 4.0L in front of one though. If you do a 4.0L swap you need a WC T-5 or the BA10/5 (which is fine for a light street car, barely adequate for a truck... close to the strength of the WC T-5, stronger than a Non WC T-5) or AX-15 (strongest!) that came with the 4.0L.

I agree. I was a parts manager in an AMC dealer in 1979-80 and we had to replace a SR-4 behind a 304 in a '79 AMX under warranty. Factory service rep wasn't happy, but it happened. Yes, that transmission was marginal behind a strong 258.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 6768rogues Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2020 at 11:25pm
I have a 4.0 in my 66 American convertible and it has an AX15 behind it. It works well and any parts store has clutch parts.
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Post Options Post Options   Thanks (1) Thanks(1)   Quote kenoshakicker Quote  Post ReplyReply Direct Link To This Post Posted: Sep/26/2020 at 4:05am
IMHO I think he is asking if a clutch kit for a 4.0 will work with his son's factory 258 4 speed car.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote matty 401 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/26/2020 at 9:08am
parts store do not list a clutch kit for his 258 i went back a couple years and found a clutch for a v8 hoping that will work 
72 matador 401 the beast
79 concord 2 door
72 matador 304 grasshopper
68 Rogue 360
93 Cherokee 2wd 4.0 5 speed
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matty 401 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote matty 401 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/28/2020 at 5:55am
is is a 3 finger style  but bolted right up  works like it should   
72 matador 401 the beast
79 concord 2 door
72 matador 304 grasshopper
68 Rogue 360
93 Cherokee 2wd 4.0 5 speed
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