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Transaxle

FM Former Member
I am going to order my Transaxle but need some advice. I have been told to get one with 3.88 ring & pinion and 0.82 or 0.89 4th gear. I do not spend much time on the freeways, most of my time is on the city streets. I do want a tranny that will stay together and not cost an arm and leg to get one. I will be running a Porsche 914 2.0 that develops between 130 and 150 hp, 205x55x15 or 205x50x15 tires. Now someone tell me if I need a super-diff etc or just what they call a Freeway Flyer. I don't drag race but like to get on it ocassionally and want it to stay together. Whaich way should I go to be happy?
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FM Former Member
I am going to order my Transaxle but need some advice. I have been told to get one with 3.88 ring & pinion and 0.82 or 0.89 4th gear. I do not spend much time on the freeways, most of my time is on the city streets. I do want a tranny that will stay together and not cost an arm and leg to get one. I will be running a Porsche 914 2.0 that develops between 130 and 150 hp, 205x55x15 or 205x50x15 tires. Now someone tell me if I need a super-diff etc or just what they call a Freeway Flyer. I don't drag race but like to get on it ocassionally and want it to stay together. Whaich way should I go to be happy?
FM Former Member
Robert, you should be able to use a split-case VW transaxle -- and that will allow you to specifically choose which gears you want. You can pretty easily mix and match; first from a '63, second from a '71 ...
That's the plan for the T-IV Hoopty engine/tranny combo. I'll be going through the bins to see what innards I have on hand anyway; if you go that route maybe I can help.
FM Former Member
Since you're using a Type IV I second Jim; it's a good idea to reinforce the transaxle to handle the increased power. It's also a good idea to see what gear ratios are used on them and stick to those. If you were using a Type I powerplant for your use I would've told you to keep everything stock.
FM Former Member
Cory, Robert,
a Split case Transaxle is a 36hp VW box. Crashbox! I don't think it has syncros is first. If you find any of these around, I doubt you'll find parts. Or did I miss something.
I'd use a 3:88 Ring and pinion and stock (1970 era) gear ratios (stock.082 4th). Type 1 IRS or (short)swingaxle.
The HD sideplate, welded hubs, steel shift forks, and welded t.o. brg cross shaft, are pretty much std.
Check with Rancho transaxles. That's who I'd recommend as a supplier.
They call that config. "Pro Street"

Greg B
FM Former Member
I'm using a stock late model Type 1 transmission with 3.88 r&p and stock gears. My engine is potent 2332 that I drag race and autocross. No problems with the transmission.

My advice. After market transmissions can be great, and they can be terrible, from the same bulder. A place like Rancho has enough trannys going through that some of them come out bad. It's almost safer to go with a good stock, original German transmission. At least you know what you have, it's cheap, and built right. And they are tough!
FM Former Member
well, I am having my transaxle rebuilt locally by the guy who rebuilds all the ones for this area. He's welding 3rd and 4th, steel shift forks, glass beading all surfaces, super diff, 4.012 R&P with some other little tricks for my mild 2.0 type 4. Hes says it will be good for 140-180 HP, so its plenty for my little car.

Michael
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