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Re: C900 automatics Posted by CMyles [Email]  (#1126) [Profile/Gallery]
(more from CMyles) on Sat, 21 Jan 2006 14:13:33
In Reply to: Re: All of mine lasted for many many miles--, sandy hague, Sat, 21 Jan 2006 11:33:54 Members do not see ads below this line. - Help Keep This Site Online - Signup |
ejh, Bands are adjustable on all automatic transmissions but when they are shot adjusting them won't help so don't buy ANY car based upon that consideration. (Make the seller get them adjusted first). I'll assume that you are looking at a C900 since this is the C900 board. T-37s in C900s are typically good for 150,000-200,000 miles in normal use from my experience (which is primarily rebuilding them at a large Saab independant shop). Some people get more, some less. The best you can do is drive the car and listen/feel carefully for the 2 upshifts and downshifts in drive (these are 3 speed trannys), at the appropriate road speeds and see that it 'kicks down' properly and has reverse (duh). It should be quiet and smooth. If it slams into any gear, going up or down, or hesitates between gears then it needs service. It must be filled with type F ATF to provide a useful diagnostic test drive. Test it 'cold' too. Some significant problems are (at first) only evident prior to reaching normal operating temperature. Find out the service history and mileage, look for leaks and look at/smell the ATF. T-37 is a transaxle so the tranny part in the front is full of ATF but the differential part, at the back, contains 80/90 gear oil. I saw a lot of these transaxles ruined because the gear oil leaked out and no one ever checked it. Generally the T-37 is a good reliable 3 speed automatic but when it dies the removal and replacement is much more labor than on a conventional sidewinder Front wheel drive car or a RWD car. That's because it is underneath the engine and so complicates the removal/replacement. A good rebuilt T-37 isn't any more expensive than most rebuilt automatics but to get a good one you must deal with a very short list of shops and that means freight $$$. (Too heavy for UPS). And both ways because there is a sizable core value. If your T-37 eats it, and depending on where you live and how DIY able you are, changing over to a 5 speed is often more cost effective than a fresh T-37. BTW, one (of several) reason(s) that you can't really entrust a T-37 rebuild to just any tranny shop is that doing it cost effectively requires a large inventory of good used T-37 parts as most of the (hard) parts were only ever available through Saab $$$. I rebuilt these in the '90s, (cost effectively), by building one from the hard parts of 3 or 4 cores! Don't get me wrong, I like T-37s, you just should know what to expect from one now that it's 2006. Good luck, happy Saabing.
posted by 206.123.221...
, Sun, 22 Jan 2006 08:41:58, Sat, 21 Jan 2006 14:13:33 <-- Viewing This Message, Sat, 21 Jan 2006 15:24:59, Sat, 21 Jan 2006 14:17:55
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