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Been searching online for info about a transmission swap. Still cant find the answer, so thought I would post here. Trying to install a 400 Turbo into a Malibu that had a 350 Turbo in it. The 400 is from an early C-3. The Corvette Trans has a fixed yoke. Since the Malibu is a straight axle, I will need a slip yoke on the driveshaft for the 400. My question is what slip yoke is needed to make this change.? Can it be done, or is this Just a spare trans for a Corvette. Thanks.
Been searching online for info about a transmission swap. Still cant find the answer, so thought I would post here. Trying to install a 400 Turbo into a Malibu that had a 350 Turbo in it. The 400 is from an early C-3. The Corvette Trans has a fixed yoke. Since the Malibu is a straight axle, I will need a slip yoke on the driveshaft for the 400. My question is what slip yoke is needed to make this change.? Can it be done, or is this Just a spare trans for a Corvette. Thanks.
Are you saying the Corvette yoke is bolted on? Mine wasn't. Will the old driveshaft still fit? All you need is a U-joint with the 1330 on one side & the 1310 on the other (or whichever one it is, you get the picture) Driveshaft shop can help you out.
[QUOTE=ratflinger;1601588868]Are you saying the Corvette yoke is bolted on? Mine wasn't. Will the old driveshaft still fit? All you need is a U-joint with the 1330 on one side & the 1310 on the other QUOTE]
Thanks for the help guys. Yes the 400 trans yoke is bolted to the shaft. If I remove the bolt, I would assume the yoke would slip. Problem solved? Can't be that easy.
. As far as drive shaft length, your guess is as good as mine. The turbo 400 length looks damn close to the 350 but have not measured yet. Figured a trip to a driveline shop would be in the works, but that would be my last on my list. Wanted to make sure the trans I have will work for this project.
Gold Dragon
I think you are trying to mate a turbo-400 output yoke to a m-21/turbo350 driveshaft? If so....
Here are the part numbers that I used to mate my Richmond ROD 6-speed to the regular M-21 driveshaft. Part numbers are from 1998 but I'm sure you can find a cross reference.TH400 32-spline slip yoke GM part number 3930827 - was about 100 bucks in 1998 at corvette specialty store sale.
--came with 2 brackets and 2 bolts--had to buy another strap and bolts since 2 bolts were missing, ~4 bucks at a GM dealer. https://www.corvettecentral.com/c3-6...27%26count%3d9
Conversion/Adapter U-joint Spicer 5-134x or TRW 20056 (Part number on receipt is PRJ-20056) - was about 20 bucks in 1998 at local speed shop.
I just looked around and you can get that yoke for ~130 bucks at corvette central and the u-joint is available several places for 15-20 bucks. You might be able to find better prices...I just did a quick check.
..... then it'll all bolt together.
Originally Posted by Gold Dragon
Been searching online for info about a transmission swap. Still cant find the answer, so thought I would post here. Trying to install a 400 Turbo into a Malibu that had a 350 Turbo in it. The 400 is from an early C-3. The Corvette Trans has a fixed yoke. Since the Malibu is a straight axle, I will need a slip yoke on the driveshaft for the 400. My question is what slip yoke is needed to make this change.? Can it be done, or is this Just a spare trans for a Corvette. Thanks.
Last edited by carriljc; May 30, 2020 at 10:49 PM.
Slip Yoke 400
