TH350 -vs- TH400 Tranny
 

Can someone give me the pros and cons of each. Currently have a TH350 in my 69 SWB, but have a couple 400's laying around and was wondering what that would give me.

Re: TH350 -vs- TH400 Tranny
 

Strength mainly IMO The 400 is a stronger tranny. I have a pro's and cons link somewhere, I will try and find it for you. quicker than trying to type like a chicken. :lol:

Re: TH350 -vs- TH400 Tranny
 

TH400 has more drag than the th350,thus creating more heat. It is the strongest of the two. But the th350 is by far no slouch. If you have it, use it. JMO
-Lance

Re: TH350 -vs- TH400 Tranny
 

:agree: With this no real need to change unless your after some real big power and such. This is not the link I mentioned but it's got alittle info on at least the gear ratio differences. I must have lost the link I had. Check it out. LINK

Re: TH350 -vs- TH400 Tranny
 

So would you use it if you were going to do a lot of towing/hauling or had a bigger motor? Any gas mileage savings?

Re: TH350 -vs- TH400 Tranny
 

No fuel mileage savings with a TH400, but if you're doing a lot of towing, it will live longer under the strain.

If it's performance you're after, then a TH350 can be built as a high perf tranny.

But personally, if you're going to rebuild one or the other, then rebuild the TH400 and sleep well every night.