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Author Topic: SR4 to T5  (Read 1019 times)

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Offline mach1mustang351

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SR4 to T5
« on: July 01, 2012, 06:05:06 PM »
This should be a slam dunk but with my lack of free time I wanted to get a better pic of what I'm getting into here.  I got my new SX4 and the guy I got it from had a parts wagon sitting there with a T5.  I know the easy parts are the same, bolt pattern etc but is there any little things I should be aware of with this swap?  Thanks
Fleet:

1987 AMC Wagon 4.0L, 3" Body lift, AX15, NP242
1981 AMC SX4 Sport
1969 Mustang (A Mach 1 with a 351)
1973 GMC K2500
2007 Suzuki Vstrom

Offline eaglefreek

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Re: SR4 to T5
« Reply #1 on: July 01, 2012, 08:27:07 PM »
As long as they are both the same engine, you should be fine. The only difference I'm aware of is the input shafts between the 4cyl. and 6 cyl. engines. Make sure you get the shifter for the T5.
"I know he'd be a poorer man if he never saw an eagle fly,
Rocky mountain high"  John Denver
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Offline mach1mustang351

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Re: SR4 to T5
« Reply #2 on: July 01, 2012, 11:15:00 PM »
Yea I was going to have fair game at the whole car before he gets rid of it.  I would take the trans, hydraulics and the shifter.  I kind of thought the input would be different but as long as the pilot works a clutch can be figured out. 
Fleet:

1987 AMC Wagon 4.0L, 3" Body lift, AX15, NP242
1981 AMC SX4 Sport
1969 Mustang (A Mach 1 with a 351)
1973 GMC K2500
2007 Suzuki Vstrom

Offline carnuck

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Re: SR4 to T5
« Reply #3 on: July 01, 2012, 11:33:18 PM »
Rear driveshaft length may be a problem.
FOR SALE
'87 Comanche 4.0L AW4/NP242 3.73 gears, lifted 5" on near new 33" tires $3500 obo
'82 Eagle Wagon (Brown Betty) 4.2L/727/NP229 and soon 8.25 rear axle and non-vacuum 3.08 front to match. 235/75/15 tires. It's down to minor body work (someone creamed my driver's door but I have another in good shape) almost rust free and interior work (seats are worn and carpet torn). $2000 but about to go up due to more work being done.

Pics of my other for sale stuff http://tinyurl.com/jimsclads

Offline eaglefreek

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Re: SR4 to T5
« Reply #4 on: July 02, 2012, 07:29:00 AM »
Rear driveshaft length may be a problem.

Why? As far as I know the SR4 and T5 are the same length. When I had my wagon with the SR4, I bought a T5 to put in it. Never did install it, but they measured exactly the same length. According to Novak's site, the SR4, T4 and T5 are 15 1/4" long.
"I know he'd be a poorer man if he never saw an eagle fly,
Rocky mountain high"  John Denver
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Offline carnuck

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Re: SR4 to T5
« Reply #5 on: July 02, 2012, 10:40:05 AM »
I must be thinking of a different trans then. AX-15 maybe?
FOR SALE
'87 Comanche 4.0L AW4/NP242 3.73 gears, lifted 5" on near new 33" tires $3500 obo
'82 Eagle Wagon (Brown Betty) 4.2L/727/NP229 and soon 8.25 rear axle and non-vacuum 3.08 front to match. 235/75/15 tires. It's down to minor body work (someone creamed my driver's door but I have another in good shape) almost rust free and interior work (seats are worn and carpet torn). $2000 but about to go up due to more work being done.

Pics of my other for sale stuff http://tinyurl.com/jimsclads

Offline mach1mustang351

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Re: SR4 to T5
« Reply #6 on: July 02, 2012, 08:43:38 PM »
I must be thinking of a different trans then. AX-15 maybe?

AX 15 is definitely different as per my big Eagle.  but now that I think about it I changed T cases too and went with the 242 with the slip joint at the driveshaft.  I guess I dont know then :)
Fleet:

1987 AMC Wagon 4.0L, 3" Body lift, AX15, NP242
1981 AMC SX4 Sport
1969 Mustang (A Mach 1 with a 351)
1973 GMC K2500
2007 Suzuki Vstrom

Offline captspillane

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Re: SR4 to T5
« Reply #7 on: July 05, 2012, 01:49:07 PM »
An AX15 input shaft is 3/4 longer than a T5 and it has a different nose at the end, so it needs a different pilot bearing. The Advance Adaptors "NV3550" kit can be used with the AX15 as well. That is how to do it if you need to retain the original flywheel or clutch linkages, which is a necessity for AMC V8s and Jeep CJ's Mechanical linkages. In a 6 cylinder Eagle you also have the options of using the 4.0 flywheel and bellhousing. I have this information in the transmission threads.

I have SR4 to T5 swap photos and information in a thread in the 4cyl section. I just installed a T5 in my Iron Duke Kammback where an SR4 used to be. They are totally interchangeable. Same input. Same everything.



Here are the minor exceptions:
-A 4 cyl and a 6 cylinder uses the exact same hyraulic clutch system except for the pushrod on the slave cylinder. The 4 Cylinder pushrod is longer than the 6 cylinder pushrod. Yes you can just leave your clutch stuff alone and just slide the SR4 out and slide the T5 in. I currently have a 6 cylinder slave cylinder with a 4 cylinder pushrod in my Kammback, it is a definate yes on the compatibility of any individual part. The pushrod swaps out without having to disturb any clutch stuff or do any fluid bleeding.

-My T5, its engine mount, and its crossmember came from my 258 SX4. I had to flip the engine mount 180 degrees and move it to the back set of holes in the 6 cylinder crossmember for installation in the 4 Cylinder Kammback. All the exact same parts, just different orientation. AMC cars are awesome that way.

-The T5 has a bulge around the fifth gear that the SR4 does not. That bulge blocks a bolt hole. The T5 thus uses a bolt threaded directly into the aluminum case where the SR4 has a through bolt and nut. Same bolt, same location, just threads instead of a nut.

-The SR4 has a two bolt piece of metal that the support rod bolts to. That bulge in the T5 doesn't give enough room, so the T5 had a single bolt piece of metal instead. It doesn't matter. The support rod goes up and helps keep the front axle from vibrating, but I ran without the rod for years. Its not even important. I wanted to keep it in this Kammback anyway, so I just cut the SR4 version of the tab down to work with the T5. That will make sense once you're looking at it or if you look at the pictures in my other thread.



« Last Edit: July 05, 2012, 01:55:10 PM by captspillane »
Currently Inspected and Insured as of Jan 2013:
-1985 Eagle Station Wagon 258 T5 Stickshift
-1980 Eagle Station Wagon 258 Auto Fuel-injected with GM TBI

Minor Repairs Underway:
-1982 Eagle SX4 258 T5
-1981 Kammback 2.5L Iron Duke T5

Restoration Efforts Near Completion:
-1982 SX4- 401 NV3550
-1983 SX4- 4.5 MPI NSG370 (6 Speed)

Restoration Efforts Underway:
-1985 SW- 4.0 MPI AX15
-1982 SX4- 4.0 AW4
-1981 SX4- SD33T NV4500 (Turbodiesel 5 speed)

Future Rescue Efforts- '85 Maroon SW, '87 Limited SW, '84 Limited SW, '87 4 door Sedan, '81 2 door Sedan, '88 White SW, '77 4 door Hornet, '74 2 door Hornet, '79 Spirit AMX, '81 Kammback.

RIP- Red '81 SX4, '84 4dr Sedan, '84 SW, '81 SW, '80 Spirit, '83 SW, '83 4dr Sedan