Ive come across a really good deal on a rebuilt 700r4, and i wanna swap out my metric 200. Ive heard i have to shorten my drive shaft to do this swap can anyone give me anymore details in what this swap will take. P.S i am running the 4.3 tbi engine if that helps anyone.
Thanks ahead of time,
Max

also if anyone could tell me what spline counts im looking for would be greatly appreciated

I'm not sure I'd do the swap. The frictional loses of the 700R4 are higher than the 200 and the 200 should go forever behind the 4.3.

Bottom line: I think it is a lot of work and the net result will be a slightly slower Camino.

by 200 do you mean the metric200 or 200r4? That one statement is very contradictory from what ive heard from quite alot of people. interesting

last time i read anything about the 700r4 youre looking at up to 30% of total horsepower loss through the trans.... parasitic loss through automatic trannys sucks.

Have you looked into the th350???

i have but i do not want to lose overdrive. how does the loss from other trannys compare to the 30 of the 700r4?

700 had the worst parasitic loss of all the gm automatics. i havent heard anything about the 4L60 and 4L80Es. but they need a computer to controll them.

as far as overdrive autos, though, the 200r4 is fair and doesent rob too much power but theyre weaker overall than 350s. for all around performance and strength go with 350 and a little taller ratio out back.

A simple answer: if it ain't broke, don't fix it. If the metric 200 is acting up, that's a different story. The 2004R, like mentioned above would be the next best fix.

Plus he's running the 4.3 that metric 200 should last a long time. At least till the big block swap.:poke:

sad thing is the metric is acting up and slips every chance it gets. so i guess its back to the 200r4 or th350 hmmmmm.

sad thing is the metric is acting up and slips every chance it gets. so i guess its back to the 200r4 or th350 hmmmmm.

try trans x or a fluid swap to valvoline high mileage. it reconditions the seals.

Good idea. Try the simple/cheap stuff first. If it's old clutch piston seals leaking by, the additive may help. If it's clutch wear, it's running on borrowed time. An oil & filter change may just help, if the filter is old and partially closed off, starving the oil pump a bit.

high mileage and transmissions in cars that are parked for years at a time and even good transmissions sitting on a shelf somewhere all have a common problem, the rubber seals throughout get hard and dopnt seal. when you run them as they are like that it leads to slower shifts and clutches wearing prematurley.

Steelybill is right tho, you can get a few more miles out of it, but ive never seen one last more than a little while once it starts to slip. but it might give you enough time to get something lined up in order to get the trans swapped.

if youve never serviced the trans, now is the perfect time for a filter/fluid swap. besides, you might find something once you get the pan off that fixes it for another 100k miles.

there were plenty of the S-10's and fullsize half ton trucks built from 87 till 93 with the 4.3tbi and 700R4 combo and the were strong runners for what they were. the metric 200 and the 700r4 both use the same spline outputs you just need to shorten the drive shaft 4 inches.

there were plenty of the S-10's and fullsize half ton trucks built from 87 till 93 with the 4.3tbi and 700R4 combo and the were strong runners for what they were. the metric 200 and the 700r4 both use the same spline outputs you just need to shorten the drive shaft 4 inches.

They were also alot lower geared in general from the factory.

my 87 only had a 3.08 in it.

3.08 with an overdrive would be insane. way top end geared

Okay, i am doing a swap cause literally i am done with this tranny and after looking at it the other day it is DONE. So the swap regardless is gonna happen i just dont know what to put in all this talk about the loss created by the 700r4 scares me due to the fact that the 4.3 doesnt put done much power in general

The 700R4 was used in Chevy pickups with the 4.3 engine, so it's not like it hogs all the power, but it's sure not a performance thing with a small engine. and the rear gearing was matched to the engine, with that trans.

I was in the same boat as you for my 63 Chevy II and I think I made my decision now on the 200-4R. The 700R4 is huge, robs power (not a huge difference but enough to tell), and then you have to cut your driveshaft. The 700R4 has awesome gears and a nice 1st to 2nd gear to get you off the line quickly. That and it is a bit stronger but I have done some research and found that certain year 200-4R's are better and stronger. I cannot remember the years off the top of my head but I am sure some here know. If you plan to run a 350 or similar definately get a built 200-4R and do not run a stock one. If you will be putting it behind the V6 then you will be perfectly fine with the mild 200-4R.
Let us know what you decide and be sure to do your homework!