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Discussion Starter · #1 · (Edited)
i have a 94 formula with a bad transmission, from other posts i have read i understand that i can put a 4l60e out of other bodies if i change the tailhousing? as long as it is a 94 4l60e?

1: junk yardas say they are not compatible with the f body, so i may ask what is the difference in the tailhousing that they need changed? and how does this make them compatible?

2: is the tranny out of a 94 buick roadmaster ok? other posts say caprice or impala, or even a 2wd truck, but saw no mention of the roadmaster... i assume it is good though guy at junk yard told me it would go in a caprice as well... is there anything else special i need to know to make this swap?. thanks for any and all help, trying to get the info as fast as possible got a yard that will sell me one for $400 with a 6mos warranty sounds like a good deal to me for a used one, with a warranty. most others want more and a 40day is best they give. cant afford a rebuild atm so that is out for now.

just liked to be informed so sorry for all the questions. and sorry if they have been asked a thousand times before, been searching info til my head hurts...lol
 

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The 4th gen camaros use a torque arm rear suspension. The torque arm bolts to the tail housing. No other vehicle has the mounts for the arm. Changing the tail housing only requires taking out 4 15MM bolts that hold it on.
Yes, a Roadmaster trans will work. The only real difference is it won't have the "Corvette" servo that your F-Body has.

Frank
 

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Discussion Starter · #3 ·
The 4th gen camaros use a torque arm rear suspension. The torque arm bolts to the tail housing. No other vehicle has the mounts for the arm. Changing the tail housing only requires taking out 4 15MM bolts that hold it on.
ok that makes sense thanks

Yes, a Roadmaster trans will work. The only real difference is it won't have the "Corvette" servo that your F-Body has.

Frank
i assume that the servo from my burnt tranny (3/4 clutch pack big shocker huh) could be swapped in? is it that big a deal? i running stock build, will the vette server make shifts feel better?
 

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The servo isn't hard to swap. It will help both the 1-2 and 2-3 upshift.

If you already know about the 3-4 clutch issues, why would you buy one from a junk yard? Chances are, the 3-4s on any stock trans are going to be gone or on their way out. You can have one built for $750. Why take the chance?

Frank
 

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Discussion Starter · #5 ·
I understand what you are saying and honestly if I had the $750 I would. However I work construction. And just coming.off layoff I am practically breaking the bank now for the $400 for the junk yard one. It comes with a 6month warranty. If it lasts that long I have been back to work long enough to catch up the bills and save for the rebuild. Actually have been wanting.to do a t56 for awhile.so may just save up for that instead. Right now it's all about the money I have to play with. More then anything
 

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Discussion Starter · #7 ·
That is actually the search engine I found it on. I found better prices on others but by the time I drive to get it I will spend the difference in fuel, don't seen to be many around my neck of the woods
 

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The 4th gen camaros use a torque arm rear suspension. The torque arm bolts to the tail housing. No other vehicle has the mounts for the arm. Changing the tail housing only requires taking out 4 15MM bolts that hold it on.
Yes, a Roadmaster trans will work. The only real difference is it won't have the "Corvette" servo that your F-Body has.

Frank
The Roadmasters,FW's and LT1 Caprices do have the Corvette servo, LT1's should have them from the factory. L99 (4.3 V8) Did not.

LT1 vs. L99 Trans differences:
4L60Es in L99 4.3L V8 cars come with a smaller servo than the LT1 5.7L V8 cars, which come with the cor-“vette” servo for more holding power on the 1-2 and 3-4 shifts. If an L99 4L60E is going behind an LT1 engine, the servo assembly should be swapped over before installed (easily accessible on the passenger-side of the case). TransGo also sells a vette servo that can be installed as part of their 4L60E HD-2C reprogramming kit. Also, the boost valve is smaller (again, Transgo fixes), and it is possible that some holes in the separator plate are smaller.
 
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