Turbo 400

[jav401]

Was there a 400 with an AMC bell housing or did they all rely on an adapter?

[fuzz401]

tranny from I think 70 to 79 in jeeps had the AMC bell on them

[tufcj]

I think in 71-72 they used a Buick TH400 with an adapter in Jeeps. From 73-79 they used a TH400 with an AMC patterned case.

Bob
tufcj

[jav401]

here's the thread from the AMC Forum:http://www.amcforums.com/cgi/yabb2/Y...num=1165409917

[runnamuck]

I think in 71-72 they used a Buick TH400 with an adapter in Jeeps. From 73-79 they used a TH400 with an AMC patterned case.

Bob
tufcj

yep, that's what i remember.

[J4GRAND]

The AMC-patterned TH400 used in Jeeps began in 74.

[jeep_man_401]

I have a TH400 in my 78 J10.

[dray]

Hey folks- new to this forum.

Turbo 400`s were facotry in the Kaiser jeepsters and AMC Commandos from 1966-1973. These were all BOP patterned cases. All were identical transmissions. A cast iron adapter ring was used to mate the AMC I6 and 304`s. The early Kaiser models had an adapter ring for the buick 225`s. In addition to the adapter ring, there was a crank spacer too. The great thing about these are the tailshaft was the fine splined type that would accept the tailshaft housing and bolt on yoke from late model 400`s. The AMC cased used a coarse spline tailshaft and has no yoke counterpart. I`m putting a 400 behind a 360 in my 75 hornet. Not too sure about the bolt pattern for the q-trac transfer case, but I don`t thing the tailshaft housing is a bolt on for the 74-up. These transmissions are still easy to find if you know where to look. The crank spacer can be eliminated if you use .900 thk spacers between the flexplate and torque converter. Have done this several times without any problem.The commando used a special flexplate, but you can still get them just about anywhere.

Thanks- Drayson
Heart of Dixie

[gsmikie]

Hey folks- new to this forum.

Turbo 400`s were facotry in the Kaiser jeepsters and AMC Commandos from 1966-1973. These were all BOP patterned cases. All were identical transmissions. A cast iron adapter ring was used to mate the AMC I6 and 304`s. The early Kaiser models had an adapter ring for the buick 225`s. In addition to the adapter ring, there was a crank spacer too. The great thing about these are the tailshaft was the fine splined type that would accept the tailshaft housing and bolt on yoke from late model 400`s. The AMC cased used a coarse spline tailshaft and has no yoke counterpart. I`m putting a 400 behind a 360 in my 75 hornet. Not too sure about the bolt pattern for the q-trac transfer case, but I don`t thing the tailshaft housing is a bolt on for the 74-up. These transmissions are still easy to find if you know where to look. The crank spacer can be eliminated if you use .900 thk spacers between the flexplate and torque converter. Have done this several times without any problem.The commando used a special flexplate, but you can still get them just about anywhere.

Thanks- Drayson
Heart of Dixie

the 66-74 used a buick nail head pattern case(with a adapter ring) on the th400 in 74-79 they went to the amc bolt pattern all th400 in jeeps used the short 2 wheel drive output shaft except for the Q-uadra trac it used the corse spline long output shaft and none of the output shaft's were drilled and tapped in the end if you have one that is drilled and tapped it is from a latter model gm trans and if you are installing a spicer/dana 20 transfer case on the th400 dont forget the o-ring on the output shaft or you will leak oil through the adapter weep hole and all th400's have the same bolt pattern on the tail section of the mail case

[tarior]

I have a '78 TH 400 out of a Waggie in my '69 Rebel. I had to change the output shaft and housing and have the case machined for a speedo. The whole conversion cost me about $200. The driveline was about $200. No changes were necessary on the bellhousing end.
I also have the 401 out of the Wag in the Rebel as well.