Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend> trans swap in 90 caprice
User Name
Password
lost password?   |   register now

Thread: trans swap in 90 caprice Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
06-01-2011 01:56 AM
cobalt327
Quote:
Originally Posted by cudablack2004
it doesnt have a plug at all so i guess its a non lockup not sure what difference that will make or what ill notice. And i do have a cable with it! Will my 200r4 speedo work in there they look similar? Will the convertor bolt up to my flywheel? And would that be a better choice over the 200c or should i sell and start over?
I agree to use the TH350 as long as it's good, no need to start over w/another weak-kneed TH200.

Not having lock up really isn't a biggie, IMO. And it makes the installation just that much easier, because if it was a TH350C, you'd want to wire up and use the TCC. Running w/o the TCC on the highway will cost you a little mileage over a TH350 w/o lockup due to the looser TH350C torque converter stall when not locked up. The difference is about 200-250 RPM depending on the specific app.
05-31-2011 09:47 PM
tnsmith10
Quote:
Originally Posted by cudablack2004
it doesnt have a plug at all so i guess its a non lockup not sure what difference that will make or what ill notice. And i do have a cable with it! Will my 200r4 speedo work in there they look similar? Will the convertor bolt up to my flywheel? And would that be a better choice over the 200c or should i sell and start over?
the 350 is quite a bit stronger than the 200. if mileage isnt all that important to you with this vehicle, id say just put it in and not worry about lockup.
the speedo cable fits on either trans, and the converter will bolt up to your flexplate, just have to buy converter nuts and bolts. 3/8x24x3/4 on the bolts, and 3/8x24 on the nuts.
05-31-2011 09:08 PM
cudablack2004 it doesnt have a plug at all so i guess its a non lockup not sure what difference that will make or what ill notice. And i do have a cable with it! Will my 200r4 speedo work in there they look similar? Will the convertor bolt up to my flywheel? And would that be a better choice over the 200c or should i sell and start over?
05-31-2011 08:57 PM
tnsmith10
Quote:
Originally Posted by cudablack2004
ok just went out to check the trans out very good! It has 13 pan bolts 6" tailshaft and a vacuum modulator in the right side....which identifies as the th350 27 splines and has a convertor with it! Now as i start all over what will i need to do to make that swap possible? Im kinda upset i didnt pay too much attention but i kno i have a way stronger trans that will hold some hp and maybe roll some heavy wheels if i decide to put my 18s on
here, instead of retyping, i copied and pasted what mentioned up on page 1.
if its a th350, you will have to run a vacuum line from that nipple, to a full vacuum source on the engine. and you will have to buy a kick down cable for the 350 as the cable for the 200c and the 200-4r are not the same as a th350.
oh and i forgot to mention 1 good thing, you dont have to do a thing to the driveshaft as from end to end, they are the same length.
05-31-2011 08:47 PM
cobalt327 Does it have an electrical connector on the driver side near the shift shaft? If so, it's a TH350C w/lock up TCC.
05-31-2011 06:58 PM
cudablack2004
now starting from scratch

ok just went out to check the trans out very good! It has 13 pan bolts 6" tailshaft and a vacuum modulator in the right side....which identifies as the th350 27 splines and has a convertor with it! Now as i start all over what will i need to do to make that swap possible? Im kinda upset i didnt pay too much attention but i kno i have a way stronger trans that will hold some hp and maybe roll some heavy wheels if i decide to put my 18s on
05-31-2011 04:36 PM
tnsmith10
Quote:
Originally Posted by cudablack2004
since its a 200c and rebuilt wit b&m shift kit and now 3 gears will that improve some 1/4 mile times? Whats will the stall be at since they all say it will be higher with that tc? Will 373s be fine in it as far as on the highway and cruising around?
the 200c is notorious for being a weak trans as it is and would not be recommended for any racing application unless the internal hard parts that are typical for failure have been replaced with updated/ stronger parts.
also, the 1st gear ratios between the 200c and the 200-4r are the same or really close so you wouldnt notice any improvement in 1/4 times, just on cruise with the o.d. in the 200-4r as it will have lower rpms in 4th and help provide better mileage.
with the metric 200c, to make it highway friendly at all, depending on tire diameter, 3.08's or 2.73's would be a better choice without too many revs, or at least getting reasonable fuel mileage.
05-31-2011 03:34 PM
cudablack2004 since its a 200c and rebuilt wit b&m shift kit and now 3 gears will that improve some 1/4 mile times? Whats will the stall be at since they all say it will be higher with that tc? Will 373s be fine in it as far as on the highway and cruising around?
05-31-2011 03:13 AM
cobalt327 Thanks, tnsmith10.
05-30-2011 07:51 PM
cudablack2004 yeah it might be a 200c then it came wit a convertor also so im not using my 200r4 convertor tomorrow ima do some measurements and see where i gotta mount the crossmember
05-30-2011 05:49 PM
tnsmith10
Quote:
Originally Posted by cobalt327
OK. I'm a little surprised (well, a LOT surprised, actually) that the 200C and the 2004R TC's are interchangeable. It's a good day when something new is learned! Thanks.
ok cobalt, i finally got on my pc and found what i was looking for. i had the right part numbers, but for the opposite converters. the 200c, 200-4r, and the 325-4l all take the gm15 series converters with the exception of a diesel, which is a gm 19 (these are old transtars # as the newer #'s start with a bu). the 350c was a gm16.
05-30-2011 01:59 PM
cobalt327
Quote:
Originally Posted by tnsmith10
the 350c converter is not the same as the stator splines are different then the 200c and 200-4r, and input shaft as well if im not mistaken.
OK. I'm a little surprised (well, a LOT surprised, actually) that the 200C and the 2004R TC's are interchangeable. It's a good day when something new is learned! Thanks.
05-30-2011 01:45 PM
tnsmith10
Quote:
Originally Posted by cobalt327
The TH200C TC is the same as the YTH2004R?

What about the TH350C- is the TC for it the same as the TH200C and the TH2004R? I'm thinking they're not interchangeable.
the 350c converter is not the same as the stator splines are different then the 200c and 200-4r, and input shaft as well if im not mistaken.
im not on my pc right now, so i dont have my trans stuff file available at this time, but i will by this evening, and will correct myself if im wrong and give the appropriate info. i do know that the 200c and 200-4r converter is the same.
if i remember right, based on transtars old part# system, the 350c took a gm15, and the 200c and 200-4r took a gm16. but like i said, i will verify.
05-30-2011 10:52 AM
cobalt327
Quote:
Originally Posted by tnsmith10
same converter for the 200 is the same as the 200-4r
The TH200C TC is the same as the YTH2004R?

What about the TH350C- is the TC for it the same as the TH200C and the TH2004R? I'm thinking they're not interchangeable.
05-30-2011 07:22 AM
tnsmith10
Quote:
Originally Posted by cudablack2004
yeah i think its a 200c/200 the pan looks identical to the ones online i searched. I see ima have to drill some holes in the frame on each side to mount the crossmember! What gears would be best for that trans not set on which wheels ima put on yet between my welds or my 18s since the car is now lowered
does the bottom of the pan say "METRIC"? if not, and it has the vacuum modulator, then it IS a th350, and not a 200, as the 200 does not have a vacuum modulator.
2.73-3.08 rear gears should work fine for that.
im kinda surprised that it doesnt have 2 sets of holes drilled for the x-member as these cars also came with the 700r4 and the mount location is in a bit different than the 200-4r.
This thread has more than 15 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -6. The time now is 02:08 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.