Hey guys i was wondering whats a better overall transmission, a NP435 or a T18, I have a NP435

 

They're both great, bomb proof transmissions. I can't really say one is better than the other.

Sam

 

as far as i know all the NP435's had a really low first gear, about 6.3 to 1......Some variants of the T-18 were a closer ratio, Jeep and IH used a close ratio T18. Both are super strong.

 

I've had both and think they are just about equal.

IIRC, the 435 has a slightly lower 1st (6.69 vs 6.34) but driving it, the difference is negligible.

 

Manual Transmissions 1st 2nd 3rd 4th 5th
Bronco 3 spd (6 cyl) 3.41 1.86 1.00
Bronco 3 spd (8 cyl) 2.99 1.75 1.00
NP 435 6.69 3.34 1.79 1.00
T-18 6.32 3.09 1.69 1.00
Toploader (Close ratio) 2.32 1.69 1.29 1.00
Toploader (Wide ratio) 2.78 1.93 1.35 1.00
Toploader (Overdrive) 3.29 1.84 1.00 0.81
ZF 5.72 2.94 1.61 1.00 0.76
NV4500 (Dodge) 5.61 3.04 1.67 1.00 0.73
Automatic Transmissions 1st 2nd 3rd 4th 5th
Bronco C4 2.46 1.46 1.00
C6 2.46 1.46 1.00
AOD 2.40 1.47 1.00 .67
AOD w/ low gear set 2.84 1.55 1.00 .67
AODE/4R70W* 2.84 1.55 1.00 .67
700R4 3.06 1.62 1.00 .70

 

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