What parts do I need and were can I order them at? I have a Ls1 rearend and it is going into a 90 camaro rear drum car. Lots of steps in instructions would help out. Mostly about the e-brake and brake lines. Are they a bolt up anyways I dont understand.
Thanks Tony C.

 

im really not sure about this topic, but you'll have much more success posting this on the "Transmission and Drivetrain" board.

(that's where it belongs anyways)

 

It's not very difficult. If you don't have a Hayes manual for your car, then get one. It will show you how to remove the rear end in orde to remove the gas tank. Just follow those steps except for the gas tank. Does the new rear you have come with the disc brakes??

Tom

 

yes comes with every thing

 

today's your lucky day... i never post here.... but I did the swap a month ago. you NEED:

shocks off of LS1 donor
e-brake cables off of donor
rear end, from rotor-to-rotor
2 bottles of gear dope
limited slip/posi additive
full can of PB blaster
good set of wrenches.... from 1/4"-1", AND an 18mm

you may WANT:

new LCA's
new panhard bar
new sway bar
new springs (lowering or otherwise)
new shocks (for a 4th gen car.... your old ones won't fit)
new pinion seal for 4th gen rear
new sway bar bushings
new proportioning valve (I'll explain later... it's not needed at all, but some people feel better having it)

NOW. the hard part is this: you need a friend, and a few hours to kill. a whole day wouldn't be bad, either. gives you plenty of time to do the swap. the need column is stuff you need to have for the swap. the want column is stuff that, since your removing the whole assembly, you'll either have to take loose anyways, or will be much easier to do since the new assembly isn't in the car.

if you want further instructions, IM me at flyitlikeustolit, or leave me a post here, and I'll guide you through it. there is a tech article on TGO, and it's pretty good. there are a few things I disagreed with, but in general, he wrote a very useful piece of work. i would print that out, and use it as a guide while your doing your swap. I'll give you a few pointers from experience, and it should go very smoothly. if your friend can't be there the entire time, he needs only be there when you're ready to physically remove the old rear, and install the new one. after that, you can lock him back in the attic.

 

Stock 3rd gen shocks will fit a 4th gen rear.

 

how? the 4th gen shocks have a stud on the bottom you screw into the housing. the 3rd gens have a bushed hole. the stud is on the housing, on a 3rd gen. so, while i guess you COULD go and hunt down a bolt to fit the hole, AND withstand the beating of the shock against it, it makes more sense to me, to get 4th gen shocks. the top part is the same, yes. I'm referring to the bottom part.

 

My Strange 12 bolt came off a 94 Z28. I removed the shock studs from my old rear end, put them in the 4th gen rear, and I had no problems. Not only that, but I have never heard of anyone needing to use 4th gen shocks when doing the 4th gen rear swap.

 

4th gen rear end Tech Article: https://www.thirdgen.org/newdesign/t...hgenrear.shtml

 

You can use 3rd gen shocks on a 4th gen rear. They are a direct bolt on.

 

thanks maybe we can talk about the change in the speedo, because it will be like 15 mph off

 

A new set of speedo gears will solve that.

 

awesome. learn something new every day. mine were crap anyway, so i just replaced them. but if two people say it works......

all i know for fact is that on my 82 trans am, the shocks wouldn't work on my 97 trans am rear end. this may have been because the threads were rusted in there, or welded in, or something. either way, i think replacing them was a good idea.

shifty's right... new speedo gears will fix your speedo problem just fine.

 

can i get those off ebay or at any parts store, how much am I looking to speed for the speedo gears, tranny is getting rebuilt anyways.

 

i believe they're pretty cheap... thought i haven't replaced mine, so i dunno. I would imagine this, though.... if you brought them to the tranny man, it'd be pennies to install.... he's alreeady got it apart anyways.

 

My transmisson man is going to teach me how to rebuild 700r4s what would be a good book to use.

 

When running new gears in a rear end what do i Change for the speedo. Some people say it is in the trans and some say it is in the computer so what is it for a 90 camaro I have the same dash as the 91 and 92 camaro.

Thanks Tony C.

 

it depends, but I've never heard of it being in the computer on these cars, though I have herd of a sensor being on the wheel, (especially on ABS cars) and that you don't have to change anything if you have that type of setup. your gears are probably on the tailshaft. remove the tail shaft housing, and you should see them.

 

Yes, so is it in the tail shaft or not

 

there's 4 bolts holding the tailshaft housing on the tranny. worst case scenario, you have to put it bck on and look elsewhere. But I'm about damn positive they're in the tailshaft.

 

k

 

Hello there,

Removing the tailshaft, may possibly be avoided, more than likely. The sensor is mounted in the tailshaft housing, but it is externaly serviced/replaced.

There are two terms here, drive, and driven gears. The drive gears are on the output shaft ( and if necessary, housing would be removed to change this gear.) The "driven gear" is the gear on the sensor.

You may be able to find a "driven gear" (sensor gear) which will get you close enough.

The factory parts manual lends gear sizes (tooth count) based on three factors (two really). Two main factors being factory tire/wheel size, and rear end ratio. I've been through this a few times. Third being trans type 5spd man, or A4.

If you have an 1986 and up Firebird, you have an electronic VSS. The gears for cable drive and electronic are different. (Camaro and Firebirds are different/sensors/vss). 1990-92 Camaros are electronic, same as Firebird. All electronic sensors are the same, although the book will list different assemblies. All you need to do is rotate the sensor in the housing, and modify the clamp (cutting), such that the gears mesh properly. (angles are built into the different sensor assemblies, so you just line up the mount; no adjustments required; hense different sensor numbers). The sensors shaft is shifted from it's external round diameter. You can adjust the position of the gears center, by rotating the entire sensor (cable or electronic) in the sensors bore; in the tailshaft housing. By turning the sensor you increase or decrease the gear meshing.

First identify what you have. Each gears are molded in different colors to identify them. Figure out what color you have on your output shaft, and you may be able to get by, by just changing the sensor (cable or electronic), gear. Keep in mind, you may need to rotate the sensor in the tail shaft casting, to mesh the platic speedo gears properly. (or you can buy all the parts listed in the book), and just slap them in.

 

You lost me on that, it is a 90 camaro with 2.73 going to 3.42 with a 25.7 inch tire. Does this get anywere for anybody?

 

I'm just telling you how I have done it. You will need a parts book which includes the table listing gear sizes, by tranny, rear ratio, and tire size. Tire sizes are listed by there SAE numbers, as P245/40R16, etc.

Maybe call SLP, they may still offer VSS gears, and can assist you further.

I thought the post may be helpful, so that you dont spend more than you have to, or do more work than you have to. The electronic sensor in your case may likely be reused.

When you get to that part, you can remove the sensor: remove it's o-ring, and clean up the bore. Install the gears, rotate the sensor, in the bore, intill it meshes properly, and mark it with a punch. Then, remove and reinstall sensor with o-ring according to the marks you made.