Well I don't have the Tag plate on the trans to tell which it is(tranny was bought from someone) so can someone with a 3.94 drive at XX MPH in 5th gear(prolly like 65-70) and give me a RPM so I can see where mine stands.

 

Around 3000 RPM.

 

my dohc sport turns 2700 at 65mph... and a second note i would really like to know somebody with a sohc 5spd what rpm they are turning at 65 so i can get an idea of what the differance is between the 3.55 and the 3.94 trannys

 

Well mine does 2700(approximately) RPM at 70 mph,SOHC, so assuming das is right, its a 3.55. Is yours also a 3.55?

 

no mine is a dohc sport so its got the 3.94... so let me guess turns around 2500rpm at 65?

 

OK, I drove my ACR for the first time in about 2 months. Driving down the freeway I was right at 64 MPH and 3000 RPM. SOHC ACR with a 3.94 tranny.

 

ACRs have a 3.94 tranny but they also have a different 5th gear ratio for an even lower final drive... i think its something like a .75 or .72 or something compared to a .85 or something close to that

 

i have a question does the 3.94 fit on a sohc motor, ive been dying to know and noone can answer it for me and i dont wanna go out and buy one and it doesnt fit

 

yes it does if you would have read this all the post in this thread you would have found that out yourself...... its a great performance upgrade for sohc guys

 

The acr mtx is the same as the r/t. A 3.94 mtx with .81FD. All other dohc 5sp models, including the n/a 5sp pt cruiser have 3.94 with .72FD.

All 2.0L , 2.2L, 2.4L, and 2.5L dodges have the same bell housing bolt pattern. Check the ID tag at the end of the case to be sure you are getting the correct gear set.