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Unread 09-10-2012, 10:17 PM   #1
ETJ85
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1985 CJ7 
 
Join Date: Jun 2012
Location: tampa, fl
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new transmission

I have a 85 jeep cj7 with a 4 speed transmission but i dont know which one it is but i want to get a 5 speed transmission. I was thinking about getting the T5 but its lightduty so im not sure how it would do with the 33s. Is the a better 5 speed or should i just stay with the stock 4 speed i have?

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Unread 09-10-2012, 11:04 PM   #2
only in a jeep cj
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What hurts "light duty" transmissions is the load placed on them from the wrong axle gears OR in another way, the incorrect gears for the tires.
Example: T5 + 2.72 gears+33s=bad
T5 + 4.10 gears+33s=good
When regeraed correctly for larger tires, the load or extra leverage from the large tires is taken by the ring and pinion.
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1975 CJ-6 304 T15 Dana20 30/44 3.73
1983 CJ-8 258 T5 300 30/44 3.31 Looking for full or half hardtop buy or trade
1986 CJ-7 Laredo 4.6 stroker T5 300 30/44 3.31
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Unread 09-10-2012, 11:32 PM   #3
my-jeep-earl
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An NV3550 would be nice!
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Unread 09-10-2012, 11:42 PM   #4
only in a jeep cj
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Quote:
Originally Posted by my-jeep-earl View Post
An NV3550 would be nice!
I fully agree. Its the closest thing to the feel and ratios of the older T5s. Plus much stronger. I wish I could find them in my area..
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1975 CJ-6 304 T15 Dana20 30/44 3.73
1983 CJ-8 258 T5 300 30/44 3.31 Looking for full or half hardtop buy or trade
1986 CJ-7 Laredo 4.6 stroker T5 300 30/44 3.31
1986 TJ-7 Trail Jeep project in the works
2003 Inca Gold TJ Rubicon
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Unread 09-10-2012, 11:59 PM   #5
BagusJeep
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Novak transmissions have a good web site that is worth reading before taking the plunge.

The T5 is not worth spending big bucks on fitting, there are stronger alternatives out there. 5th gear is usually an overdrive gear but the depth of gearing from 1st to top is worth thinking about as this will determine how useful it will be and is also related to axle gearing.

If you have the T176 4 speed then it is worth retaining and exploring why you need a 5th gear overdrive. If you have a T4 it is not a great piece of kit.

they are reaily identifiable from under the vehicle.
transmissions.jpg  
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Unread 09-11-2012, 08:51 AM   #6
ETJ85
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it looks like i do have the t176. The only reason i would want the 5 speed is for a better highway ride but wasnt sure if it would make that much of a difference on road and offroad. But since you said the T176 is worth keeping then i probably will.
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