Many engine options have been offered for the CJ-5 over it's long production
run. The original engine offered in the CJ-5 was the "Hurricane" F-Head 134 I4. The
first optional engine offerred for the CJ-5 was the Perkins 192 I4 diesel followed by
the "Dauntless" Buick 225 V6.
When AMC purchased Jeep from Kaiser, they soon made the AMC 232, 258, and 304 available in the CJ-5. The last
three years of production, the GM 151
I4 was the standard engine.
Transmission
The T-90 3 speed was the
standard transmission for the CJ-5 for many years. It's close brother, the T-86 3 speed was used with CJ-5s with the Dauntless
V6. The T-14 replaced the T-90 and later the beefy
T-15 was used with CJ-5 with the 304. The T-98 was an optional 4 speed for the CJ-5 until 1971
when the T-18 became the optional 4 speed. In 1976,
the T-150 became the 3 speed for the CJ-5. In
1980, the heavy duty 3 speeds and 4 speeds were no longer offered. The lighter
duty SR-4, T-4, T-176, and T-5 were used.
The CJ-5 never came with an automatic from the factory.
Transfer Case
The CJ-5 used the Dana 18 from
'55 until '71. In '72 they switched to the Dana 20.
From '80-'83 they used the Dana 300.
Front Axle
The CJ-5 was first offered with the Dana 25 until 1965. The Dana
27 replaced it and was used until 1971. From 1972-1983, the Dana 30 was used in the CJ-5.
Rear Axle
The Dana 44 with two piece shafts
was used in the CJ-5 until mid-1970. A Dana 44 with
one piece shafts replaced it after that until 1975. After 1976 the AMC 20 was used.
For CJ-5s manufactured from 1955 through 1970, The vehicle serial number is
stamped on a metal plate located on the firewall, under the hood, on the
passenger side.
Contributors
Thanks to Kevin Mullin for serial number location information.
This is the MOST informative site I have been to in the past 2 days. I recently took possesion of what I beleive to be a '55 Willys CJ5, and trying to find info for ID purposes is a little difficult. Thank you.
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