Dead T-4, What to replace with? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-29-1999, 10:45 AM
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Dead T-4, What to replace with?

Hello all. I am seeking opinions on tranny conversions for my 82 CJ7, 258, Dana 300. I am leaning toward the NP 435. It sounds like it might be a cheaper conversion than the NV4500. Have any of you used this tranny? Are you satisfied with it or would you do something different if you could start over? One guy says the stock driveshafts can be retained, another says I will have to buy new ones. MIle Hi jeep here in Denver is quoting a price of $1500 for rebuilt NP 435 (includes adapters). Does this sound reasonable? Will i need to replace clutch at same time?
Thanx for taking the time to help out

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post #2 of (permalink) Old 12-29-1999, 11:12 AM
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Re: Dead T-4, What to replace with?

The NP435 is a good tranny, though most people prefer the T18a over it. If you talked to Jason at Mile High, he will definitely try and sell you on the NP435 because it has a lower first gear. Not to take away anything that Mile High tells you, as their knowledge has helped me countless times! What he won't tell you is that it has a tendency to pop out of gear once it experiences some miles and that it is harder to find parts for once they wear out. The easiest way to find out whether the driveshafts will work is to add the length of the transmission and adapters and compare that to your existing setup. Advance Adapters should be able to provide you with that info. That price they quoted you isn't bad for a retailer, but if you are mechanically inclined you can do a Ford T18 swap for a lot less, or check with Parts Mike for a T18 ready to go. I'm not going to quote his prices, but I would bet that his price is a lot lower than Mile High's. As far as the clutch goes, I would change it while you've got it torn apart.

post #3 of (permalink) Old 12-29-1999, 11:33 AM
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Re: Dead T-4, What to replace with?

The advice on the clutch is VERY good. I've said this before, with the price of a decent clutch like a LUK not being a fortune, and
doing a clutch being a pita, if your clutch has more than a few minutes on it, to me it has always been worth it to replace or check
it over real good since you are there. But, ALWAYS replace the throwout bearing, even if you go the cheap route and keep the old

Brad (from the 4 Wheeling center of the universe, 4 corners USA)
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post #4 of (permalink) Old 12-29-1999, 06:00 PM
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Re: Dead T-4, What to replace with?

I went to Parts Mike to replace my T-4. No driveshaft mods were needed on mine. Check my profile for my jeep specs, and then follow it to my webpage. I have few pics done after the conversion.

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post #5 of (permalink) Old 12-29-1999, 08:24 PM
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Re: Dead T-4, What to replace with?

Before I would spend $1500 on a NP435, I would call Mike at Protech and ask him what he would sell you a P-52108195 for. This is the light duty Dodge NV-4500. Then all you would need is an adapter plate from AA, about $200, and than take your drive shafts over to Driveline Service of Denver, for re-tubing and balancing.

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post #6 of (permalink) Old 12-30-1999, 10:27 AM
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Re: Dead T-4, What to replace with?

Try calling R&P at 503-557-8911. I think you will be pleasantly surprised. I talked to them last night.
$850 for T-18 with 300 adapter rebuilt with shifter, pilot bushing
$100 core or exchange
plus shipping.
That is for the wide ratio, 6.32-1 first gear tranny ready to rock and roll.
good luck. Nickmil.

post #7 of (permalink) Old 12-31-1999, 08:34 AM
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Re: Dead T-4, What to replace with?

My 435 originally came out of an f-350 with a 390-4v.I put it in f-150 behind A351 cleveland 4-v out of a Torino,when I was in high school.I ran the dog piss out of that truck everyday for about 6 years.When I swapped the tranny in my cj-7,all I did was change the out put shaft.It has never acted like it wants to pop out of any gear. I would go with the set up that was cheaper,435 or t-18.

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