Transmissions and DrivetrainNeed help with your trans? Problems with your axle?
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i have a 1989 camaro 305 4 speed auto trans. i dont know what it is...like a 200R4 or a 700R4 or th 400. i dont really know my transmissions if you cann't tell...lol, but plz help me on this
thanks!!!!!!!!!!!
A TH400 would be a 3 speed auto. 400 standing for 400 HP. Mostly for heavy duty application in trucks. And probably only big block appications. It's been around since 1964.
the TH2004R (for some reason they put the R behind the 4, maybe to keep from getting the 2 mixed up) standing for 200 HP with overdrive. Would have been used for smaller rear drive engines.
The TH700R4 they changed the HP ratings. 700 divided by 2 = 350, so it's rated at 350HP. Used in most rear drive cars and trucks since around 1980.
A TH400 would be a 3 speed auto. 400 standing for 400 HP. Mostly for heavy duty application in trucks. And probably only big block appications. It's been around since 1964.
the TH2004R (for some reason they put the R behind the 4, maybe to keep from getting the 2 mixed up) standing for 200 HP with overdrive. Would have been used for smaller rear drive engines.
The TH700R4 they changed the HP ratings. 700 divided by 2 = 350, so it's rated at 350HP. Used in most rear drive cars and trucks since around 1980.
__________________ 1987 GTA 5.7, W/88 formy 350 and trans-hedman hedders and y-pipe,cat delete,dynomax catback,airfoil,k@n filter,afpr,A/C delete,smog delete,2400 stall,corvette servo and .5 boost vavle,TB bi-pass,tpi free mods,wonderbar,stb,kyb's all around,rest of the normal stuff.
15.967@83.63(~5800ft~)
1967 firebird 400(lots of goodies)
1992 vert. SOLD
I'm just stating how they named/rated the GM auto trans'. That's just what that number designates. The TH350 was rated/used with/however decided by corporate, at 350 HP. when the TH700R4 came out, it replaced the TH350 by adding an overdrive. See the similarity.
It's like when "THEY" state engine HP and torque specs. Is that actually what the HP is? You can get 500 different answers and opinions on different ratings from 500 different people.
And how YOU take care of YOUR equipment is directly proportional to the life expectancy of it.
I'm just stating how they named/rated the GM auto trans'. That's just what that number designates. The TH350 was rated/used with/however decided by corporate, at 350 HP. when the TH700R4 came out, it replaced the TH350 by adding an overdrive. See the similarity.
It's like when "THEY" state engine HP and torque specs. Is that actually what the HP is? You can get 500 different answers and opinions on different ratings from 500 different people.
And how YOU take care of YOUR equipment is directly proportional to the life expectancy of it.
So then whats the t56 or t5? lol
its all rated on torque capacity that the tranny is prepped for. I dont remeber the TH700R4's maximum specs but its fairly strong. More than enough to hold up your 305, just stay away from stock t-5's if you go swap, a stock 305 tpi can snap one in half. Aftermarket ones are fine. Though if you look at the gear ratios on the 700r4 on the first link it seems to have a fairly wide split between first and second.
Lets put this one back on track before it turn into a pizzing match.
If the pan has 16 bolts and is basically square, it is a 700r4. How good or bad any of gm transmissions are have been debated for years. Some guys pop them behind 200 hp stuff and some of us have run more power than they shoud hope to handle with no issues. Carry on.
i have a 350 i m putting in my 1991 camaro rs and i want to keep it throttle body so i could use my wiring harnes but i have a limited amout of money about 1500 so i cant afford to buy fuel injection products with all the other thigs i had to but so i will use a used one that i will probably find at a junk yard off a truck and then bore it out and get a bigger fuel pump will it work?
Last edited by fobs; 06-10-2007 at 10:00 PM.
Reason: not tranny
the camaro
so 700r4 is a four speed VS. the rest which are 3 speeds?
