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Old 04-07-2008, 07:07 PM
jwilson78 jwilson78 is offline
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258/T4/np208

hi all, has anyone heard of this combo? It is in a 1982 J10. I thought it had the t176 tranny until i got under it and saw the borg warner tag. Upon further investigation I found out the truck originally came with the t5 and someone swapped in the t4, yes it is a 4 speed. There is also a connector on the drivers side that i do not know what it is but it leaks. any info is appreciated.
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Old 04-07-2008, 07:11 PM
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Cecil14 Cecil14 is offline
 
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Certainly possible. Definitely not the strongest combo in the world. If you can find one I would replace that T-4 with a T-5. Still not real strong, but at least you get 5th gear.

The connector on the side should be your backup light switch.


aa
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Old 04-07-2008, 08:36 PM
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mdill mdill is offline
 
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I think you answered your question, 1/2 ton FSJ's never had the T-4 tranny stock, they got the t-176 or T-5, some one trashed the t-5 at some point and swaped in a t-4 from a CJ. (90% confindance level)

Mike D.
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Old 04-07-2008, 09:00 PM
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Stuka Stuka is offline
 
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CJ's got T4's? Was that only behind the 4 banger? The i6's got a T177.
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1981 J10 AMC 258 with TFI and Weber 32/36 DGEV Carb with a BJ's Aluminum Radiator, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 TSL's, BJ's Offroad Rear Bumper.

1975 Cherokee *Sold*
1989 XJ Limited *Sold*
2005 KJ Limited 3.7, 42RLE, NP242
2008 JK 3.8, 6sp, NP241, 2.5", 33's, 4.56's
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Old 04-07-2008, 09:11 PM
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Cecil14 Cecil14 is offline
 
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'80-83 or so got the T-4 behind the L6. They switched over to the T-176 a couple years into the 80s.


aa
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Old 04-07-2008, 09:12 PM
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Stuka Stuka is offline
 
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Ahh ok. And pretty sure it was the T177, with the lower 1st gear. Although I suppose it could have been either.
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1981 J10 AMC 258 with TFI and Weber 32/36 DGEV Carb with a BJ's Aluminum Radiator, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 TSL's, BJ's Offroad Rear Bumper.

1975 Cherokee *Sold*
1989 XJ Limited *Sold*
2005 KJ Limited 3.7, 42RLE, NP242
2008 JK 3.8, 6sp, NP241, 2.5", 33's, 4.56's
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Old 04-08-2008, 03:18 AM
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Grantshire Grantshire is offline
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Stock transmission on the Scrambler (CJ8) when it was introduced in 1981 was the SR4/T4 behind the 258. When I did mine I swapped it out for a rebuilt/upgraded T5. It's a straight drop & swap. It's not the greatest transmission and definitely not up to any abuse. I have an AX15 sitting and clocking ring sitting in the garage waiting.
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Old 04-08-2008, 12:48 PM
jwilson78 jwilson78 is offline
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So would the T5 be the easiest replacement or should I look into a NV3350? The truck is not going to be a trail blazer, just a fishing rig and occassional trip to lumber yard, may become a daily driver.
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Old 04-08-2008, 01:19 PM
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Cecil14 Cecil14 is offline
 
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A 3550 will be your strongest inexpensive option. Far less "truck" like than the NV4500 and similar. If you can get the whole setup from someone everything bolts in pretty easy. The hydro clutch will bolt up with some additional holes drilled. Tranny bolts to the factory x-member, again, with some additional holes. Get D-300 and a clocking ring and you're all set.


aa
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Old 04-08-2008, 09:05 PM
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Grantshire Grantshire is offline
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Quote:
Originally Posted by jwilson78
So would the T5 be the easiest replacement or should I look into a NV3350? The truck is not going to be a trail blazer, just a fishing rig and occassional trip to lumber yard, may become a daily driver.

Any T5 you find will need to be rebuilt and that means $$$. Cheapest option is the AX15; just as strong as NV3550 and less than 25% the cost. Source a Dana 300, buy a $100 clocking ring and you are good to go.
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62 Willys SW
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69 C101 Commando
74 Wagoneer Custom
79 WT Cherokee Chief
81 Scrambler
86 CJ10A
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Old 04-08-2008, 10:48 PM
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Guys, a D300 is *NOT* an option for him. Unless he swaps out the front axle. He needs an NP t-case.
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1981 J10 AMC 258 with TFI and Weber 32/36 DGEV Carb with a BJ's Aluminum Radiator, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 TSL's, BJ's Offroad Rear Bumper.

1975 Cherokee *Sold*
1989 XJ Limited *Sold*
2005 KJ Limited 3.7, 42RLE, NP242
2008 JK 3.8, 6sp, NP241, 2.5", 33's, 4.56's
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  #12  
Old 04-09-2008, 04:19 AM
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Grantshire Grantshire is offline
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Quote:
Originally Posted by Stuka
Guys, a D300 is *NOT* an option for him. Unless he swaps out the front axle. He needs an NP t-case.

Yes it is. Although I missed that this was a driver's drop the 300 is regularly used by others with this pumpkin orientation. You just have to flip the 300. Do a search on Dana 300 flip kit and you will find plenty of home grown and aftermarket systems. That said, drivers drop is actually easier, he can use an AX15/NP231 setup straight out of the vehicle - no clocking ring needed. Only mods will be tranny mount, possibly driveshafts and some minor stuff. He can even go hydrolic with the clutch (go for the external system). AX15's can be sourced here in almost any pick & pull yard.
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62 Willys SW
66 CJ6
67 M715
69 C101 Commando
74 Wagoneer Custom
79 WT Cherokee Chief
81 Scrambler
86 CJ10A
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  #13  
Old 04-09-2008, 08:01 AM
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Cecil14 Cecil14 is offline
 
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Yah I missed it as well...makes it even easier, he can keep his NP208. No need to bother with the weaker NP231.

And the AX15 isn't quite as strong as the 3550. Close but not quite there. Price isn't quite that dramatic either. I just picked up a 3550 with EVERYTHING included (clutch, master/slave, skid plate, etc) for a pretty good price.


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