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post #1 of (permalink) Old 12-28-2000, 11:06 AM Thread Starter
 
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Tranny ?

Have SR4 but have opportunity to get T5 installed. Have 283 chevy in 81 cj-8. SR4 seems would be weak due to jeep originally had 4banger in it. What do you guys think?

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post #2 of (permalink) Old 12-28-2000, 11:31 AM
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Re: Tranny ?

Welcome to the BBS!

I'd go with a different tranny. Throw in the SM465/NP205 and be happy, you'll probably never wear it out. It has no overdrive, so if you're looking for an overdrive, a T-5 might be an acceptable swap, but I doubt it'd last long behind a 283. If it's a World Class T-5, I'll bet it'd hold up, but not a jeep T-5. The NV4500 would be nice, but it's a LOT of money. Who put the 283 in front of the SR-4? Man, mine blew behind my GM151, I can't imagine 4 times the hp. Is this for the street or off-road?

The SM465/NP205 was put into Chevys from '67-'80, with some models even showing up in the 80's until 1990. If the truck has a 4 speed in it (or 3 speed with low), it's the SM465. Above 1980 they used the SM465, but had a multitude of transfer cases hebind it (NP208, NP241, etc). It's a very strong tranny, will bolt to the 283, is cheap, and is easy to adapt to the existing skidplate under the jeep. I swapped it into my Scrambler behind the GM151 4 cylinder, cost me $250 for the bellhousing, tranny, and transfer, another hundred or so for new driveshafts. I'm also using the hydraulic clutch setup that came with the '81 originally.

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post #3 of (permalink) Old 12-28-2000, 11:49 AM
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Re: Tranny ?

Some good advice from JEEPN, but I'd like to offer a few more. First of all, the SR4 is probably the second worst trans ever offered in a Jeep, only slightly better than the Peugot in the early Wranglers. Ball bearing input and out shafts among other things. But, if you are looking for a direct swap with not much hassle there is also one other trans you might consider, the T-176/177. Came stock in many 80s CJs, and was also used in the J trucks. But, since you already have a 283, JEEPNs idea just might be the hot ticket! [img]/wwwthreads_images/icons/smile.gif[/img]

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post #4 of (permalink) Old 12-28-2000, 12:10 PM Thread Starter
 
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Re: Tranny ?

Jeep was bought w/ SR4/283 setup. What is a "new world" T-5 and what would they be out of? This is my brothers jeep and he does't have a computer. He is thinking about the T5 swap but I thought I would ask around before he drops the bucks.

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post #5 of (permalink) Old 12-28-2000, 12:17 PM
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Re: Tranny ?

A "World Class T-5" is similar to what came in the Mustangs. Fairly strong, non granny five speed. Advance Adapters sells one ready to bolt into a Jeep for around $1200.

Brad
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post #6 of (permalink) Old 12-28-2000, 12:18 PM
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Re: Tranny ?

The World Class T-5 was put in the Ford Mustangs behind the 5.0L (302) V-8 engine, but they need an adapter to mate a transfer case to them. It's stronger than the jeep T-5 series, but they're pricey though. I'd find out what he wants to do with it. The SM465 isn't a road friendly tranny, large gears and long shifter are not conducive to speed shifting if it's a street machine. In other words, it'll shift like a truck and not like a car.


Brad,

Unless I"m mistaken, doesn't the T-176 to SBC setup need a bellhousing to adapt the two? I didn't think they were a direct bolt-up.

JEEPN
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