Yup. Make sure it's not ta truck transmission.
Yup. Make sure it's not ta truck transmission.
Any particular reason why?
The truck transmission has two shifter mounts like a B/E body 833. Longer tailshaft. You can make them work...
B/E body four-speed in an A-body
The truck transmission also has a .71 overdrive instead of .73
More info here
4 Speed Transmissions transmission
The guy claims its a 75, for an A or F body. I've not see the tail housing yet. I've asked for pics. My understanding is the truck version has the dual shifter pad configuration, right?
F bodies started in 76.
I've pulled both aluminum and cast iron OD 4 speeds from F bodies.
probably still have them.
You'll need the 5.124" retainer opening bell.
pn# 3743859 WITHOUT the insert ring
Earlier the better. 75 "A" body or "F" body should be good, shifter and all. If you are lucky, it is possible to get one with the smaller 307 front bearing. Then all you have to do is swap the front bearing retainer. The aluminum main housing has a floating countershaft, read sloppy, that can loosen up even more with usage. Try it and find out how she runs. Dump the ATF and put in 90 wt gear oil. I skip to a 64 or 65 cast housing and a new 64-65 countershaft to get everything tight again. Good luck.
I dunno about that. The 308 bearings came about for a reason, they went to the larger bearing to help make up for the 3-4 gear reversal changing how the power was routed in overdrive (3rd gear on the cluster).
You can buy a 4.8" diameter bearing retainer for the 308 bearing cases (or turn the 5.125" retainer down to 4.8"), and then you can have the 4.3" bellhousing machined out to match the 4.8" retainer. They sell the 4.8" retainers with the bolt pattern for the 308 bearings now, makes putting one behind a big block easier. More info on that on the bottom of this page, they turned it down but I've just bought the 4.8" bearing retainer with the larger bolt pattern since then
Mopar Big-Block A-Body 4-Speed Conversion
Refresh my memory, is it the 3-4 shift lever that you invert?So you want to buy a 4.8 retainer, bore the bellhousing to match the 4.8 retainer, and hope that all the machining is spot on? No thanks. I've done this too many times to worry about the 307 bearings. By the time I tighten everything up and have the stronger cast iron case with 90 wt gear oil, I'm good. I haven't worn one out yet, and I've been running one since the late 70's. I can simply slip my O/D in place of the 4 speed, hook up the shifter, and am good to go with easy stock parts that I can put back to stock whenever I want.
Refresh my memory, is it the 3-4 shift lever that you invert?