Transmissions and DrivetrainNeed help with your trans? Problems with your axle?
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Trying to decide if this is a product I should try.My car shifts into fourth early so much that I drive around town in third gear.I never shift it into OD untill i hit about 70 mph on the interstate cause it seems like it has a hard time deciding if it wants to be in 3rd or 4th,shifting back and fourth if I leave it in OD around town.My trans seems to be in good shape besides that problem and a sometimes sluggish 1-2 upshift at part throttle and sometimes at WOT.My car shifts into overdrive between 40 and 55,depending on how much throtle I`m giving it.I guess it`s worth a try for the price and of I don`t like it it looks easy to install and remove.I do plan on going through my trans soon.
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5.7,Stock TPI,LT4 production cam w/1.6 R.R.
ZZ4 heads,Hooker 2460 headers w/full 3" exhaust
2500 stall,3.42 gear,suspension mods.Full list of mods in VB garage.
Last edited by Shadygrady; 02-17-2008 at 06:21 PM.
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Hey Shady, the spring will definitely firm up your 1-2 shift. As far as it shuttling back and forth (i.e. 3-4,3-4), mine used to do that too, and it drove me nuts. I used a different item to cure that problem. I installed the B&M 3/4 shift sleeve. This changes the 4-3 downshift to 2/3 throttle instead of the factory 1/2 throttle position. The sleeve I'm referring to is the TV plunger sleeve. You have to drop the fluid pan to install it, but it's a piece of cake to put in. I did mine when it was due for a fluid/filter change. Personally, it's probably the only B&M part I would consider using in a 700r4. It works great though and it hasn't shuttled back and forth since installing it. If you want 4th gear capability at WOT, you could opt for the Vette shift sleeve instead of the B&M one. PATC Raptor corp. sells the Vette sleeve for about $40. So the sleeve will fix the shuttling problem. The other problem I had was when I changed to better rearend gears, it'd shift into 4th too early (about 35 mph), and the spring took care of that. When I don't have the spring installed, I have to leave it in Drive til I reach 45 mph, otherwise you can feel the motor lugging because it goes into 4th too early.
__________________ 89RS w/350 TPI; 69RS/SS w/450 HP 350/Muncie 4-Speed "Too weird to live, too rare to die."
I used the Superior/Fairbanks 3/4 TV sleeve for WOT 3/4, and I believe this sleeve bumped the 3/4 shift point up substanitally. I have a 1986 700R4 with just a Superior $39 shift kit in it, and the corvette servo/accumulators, and the Superior 3/4 sleeve, and I can not get the trans to shift into 4th below 50 mph. And it only goes in at 50 mph at like 1/16th throttle. If you are in the gas more than barely cruising it won't shift into 4th until well above 50 mph. I actually prefer that it shift into 4th sooner than it does but I can't change it at this point. Most people would probably love the way my trans is set up
I've been really happy with mine too since installing it. I have to be really careful with my mug full of coffee in the morning now on the 1-2 shift, and even the 2-3 shift! No more going into overdrive at 35 mph and lugging the motor either. Depending on how much throttle, it doesn't kick into overdrive until 45-50 mph. I'm going to be putting in a transgo shift kit, corvette servo, .500 boost valve, and a 2600 converter in a couple of months here, but this little spring has really made it more enjoyable to drive until then.
i bought the vette server and the boost valve too but i cant figure out how to get the plate off to get to the servo and i don't know where the valve goes can some one tell me where or better yet send some pics?
Trying to decide if this is a product I should try.My car shifts into fourth early so much that I drive around town in third gear.I never shift it into OD untill i hit about 70 mph on the interstate cause it seems like it has a hard time deciding if it wants to be in 3rd or 4th,shifting back and fourth if I leave it in OD around town.My trans seems to be in good shape besides that problem and a sometimes sluggish 1-2 upshift at part throttle and sometimes at WOT.My car shifts into overdrive between 40 and 55,depending on how much throtle I`m giving it.I guess it`s worth a try for the price and of I don`t like it it looks easy to install and remove.I do plan on going through my trans soon.
the 3- 4 shifting up and down is a problem with 85 and earlier tranys so ive been told you can either get an up grade or find a 86 and newer trans. i had a 84 trany out of a camaro in mine and my car ate it up it kept shifting up and down and when i was racing in the curvy hills it blew out the pump and then burnt out all of the clutches so either be careful and dont hotrod it alot or get a newer tranny i now have a 92 trany out of ws6 firebird and it looks physically beefier than the 84 when side by side but it shifts so smooth that i cant feel it so im changing a few parts. also can anyone supply a fool proof way of setting the shifter indicater in a camaro the cable from the shifter to the tranny is off and dosen't set in gear just right.
I orederd my spring a few days ago.Was off work today due to rain and put it on,Took about 3 seconds.All I can say is I wish more products were as inexpensive,easy to install and showed as noticeable a difference.I dont normally drive my car in rain or wet road conditions but I couldnt resist in a break in the rain.My sluggish 1-2 shift is a thing of the past now and it doesnt shift into OD untill my speedo is at 60.(I`m 99.9% sure my speedo is off,got a ticket doing 79 in a 65 with my cruise set on 70)So that sounds bout right.I was a little worried after I pulled out of my driveway,I kept waiting for it to shift and I didnt think it was going to.At 3 grand pow shifted like a mother.I am happy with it and the cool thing about it is if you dont like it or get tired of it it`s easy to remove.My car shifts more like I want it to.I used to shift it manualy to get those kinds of shifts when I was showing off or playing around.Just hope the trans holds up with it.You can barely be in the throttle on the highway if you want it to shift into OD.I kinda wish it shifted a little sooner than 3 grand on the 2-3 shift but I still love it.
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5.7,Stock TPI,LT4 production cam w/1.6 R.R.
ZZ4 heads,Hooker 2460 headers w/full 3" exhaust
2500 stall,3.42 gear,suspension mods.Full list of mods in VB garage.
Last edited by Shadygrady; 02-21-2008 at 02:47 PM.
Hey Shady, if you loosen your tv cable a click or two, it should drop the 1-2 shift point a bit. Mine did the same thing until I fine tuned the adjustment.
__________________ 89RS w/350 TPI; 69RS/SS w/450 HP 350/Muncie 4-Speed "Too weird to live, too rare to die."
I bought mine from transmichigan.com. Cost me like $16 but I accidentally put the order in twice. Got an e-mail asking if I needed two and they fixed the problem for me. Most places wouldn't do that so I thought it was worth something.
Hey Shady, if you loosen your tv cable a click or two, it should drop the 1-2 shift point a bit. Mine did the same thing until I fine tuned the adjustment
Yeah,I can get the 1-2 shift down where I like the shift but it`s not as hard as a shift as I want it to be.Oh well,cant have it all.It seems almost just like the stock shift just a lil quicker ,not so sluggish.The 2-3 shift doesnt seem to want to change that much.Then when the 1-2 shift is where I like it it shifts into OD sooner than I want it to.I`m gonna keep foolin round with it see what I can come up with.Thanks
hey 327 I am not sure but I have heard that shift kit comes with a stiffer 4th clutch spring and that in order to bring your shift back down you will need to remove the spring and go back to the original. heard that from some trans builders here.
sorry to dig up an old thread but while i was searching for info about the transgo shift kit i came across this thread here. seems like this spring is exactly what im looking for in terms of firming up my shifts and raising the shift points. that seems to be the trend, correct me if im wrong? from what i can tel it is installed where pictured by fast 355's pics right? thanks for the help
sorry to dig up an old thread but while i was searching for info about the transgo shift kit i came across this thread here. seems like this spring is exactly what im looking for in terms of firming up my shifts and raising the shift points. that seems to be the trend, correct me if im wrong? from what i can tel it is installed where pictured by fast 355's pics right? thanks for the help
Just found this thread, and had a quick question, would this do the same for my car, stock L03 with 700R4? I just ordered the corvette servo and was searching for how to install it once i get my car out of storage. Its a daily driver but just for around town, not a trip taker by any means. Since Iv found this forum im excited to get it out and make it fun to drive again. Bought it 7 or 8 yrs ago and has kinda lost its fun without doing any mods to it. But back to the subject, will this make my shifts super firm like everybody else is saying or is it only worthwile if i have gears and other goodies?
it will change the shift points a bit. It real purpose is to correct line pressure issues after you swap rear gears. I originally had 2:73's in the rear and after i swapped to 3:73's, the trans shifter way too soon because of the extra rpms. The spring delays the shift that the detent cable causes and helps correct the early shifting.
Thanks for the info, trans stuff confuses the #%*! out of me, so I just dont touch it, but this forum has helped me figure out stuff and give me ideas, wish i would have found it WAYYY sooner.
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Mods so far: Exterior: L.E.D. 3rd Brake Light Conversion, Clear Corners, Custom Painted Rims, Painted Calipers/Drums, Custom Grille, Silverstar Headlights, 8" Antenna Interior: Grant GT Steering Wheel, White Face Glow Gauges, Pioneer Deck, Pioneer Speakers, 50% Tint Engine: TBI Mods, IAT Resistor, 180* Thermo, Stand-Alone Fan Switch, Accel 8MM Wires, Accel V Groove Plugs, K&N, MagnaFlow Exhaust Trans: Corvette Servo, Energy Suspention Mount Suspention: Energy Suspention Bushings, Wonder Bar, 225/60/15 Rear 215/60/15 Front Fusion HRI Tires
I like shagwell's post.
You wouldn't want to do this for customers because of late shift complaints, as it pulls the t.v. cable a little more to move the arm towards the plunger. If it is moving the plunger in at all it isn't what you would want to do. The correct way to adjust the t.v. system is with the pan off. The arm should just be meeting the plunger at idle with six lines showing on the plunger valve. at wot the plunger should be buried. WITH A PRESSURE GAUGE IF USING THIS SPRING IF YOU DISCONNECT THE CABLE AND THE PRESSURE DROPS MORE THAN 3-5 LBS IT THOULDN'T BE USED. I don't like the spring, it is a good gimmic and probably made lots of money for the seller, but know better on my own ride so I wouldn't use it for my customers I'd fix the geometry in the first place. This can be done by altering the connection point from the centerline of the throttle shaft. not a spring that pulls the cable prematurely and collapses at full throttle. gimmic busted!
Some of you really surprise me. My first 700R-4 came out of a mid-80s caprice LG4, and with only a new spring in the 1-2 accumulator, the Painless Wiring lockup kit, and shortening the driveshaft 2", went into my '78 Camaro 350, all stock, with 3.08:1 axle.
When driving, it would go into OD as low as 30 mph, doing 830 rpm, and it was really nice. Never since have I been able to get any other 700R-4 to let me do less than 35 in OD. Maddening. I drove a '95 Eclipse, non-turbo, that also turned 830 rpm @ 30 mph, in fifth, also not lugging.
Now, I loved my '95 Z28 with Hypertech programmer spinning to 6200 rpm in first, so I'm not prejudiced against twisting an engine up tight, but there's no good reason to be stuck in third when you could be in fourth.
To be fair, I had another camaro that seemed to be lugging doing 2100 @ 65 in fourth, it was an L69 with 1.94" intake valves, a performer intake, and a cam, but a bit of tuning, just carburetor and distributor adjustments, was all it took to resolve. NOT more rpm.