TH350 and Differential
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
Thread Starter
Safety Car
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
I'll be going with the 3.70 then I guess. So what exactly do I need to do this 200r4 swap? Do I have to do any mods to this crossmember or my frame...or is this a direct bolt in replacement for this tranny...
http://www.bowtieoverdrives.com/cata....php?ITEMID=62
Just to be clear...is the 200r4 tranny the same tranny as the 2004r? The crossmember in the link above is for a 2004r, not a 200r4...are they the same?
http://www.bowtieoverdrives.com/cata....php?ITEMID=62
Just to be clear...is the 200r4 tranny the same tranny as the 2004r? The crossmember in the link above is for a 2004r, not a 200r4...are they the same?
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
I'll be going with the 3.70 then I guess. So what exactly do I need to do this 200r4 swap? Do I have to do any mods to this crossmember or my frame...or is this a direct bolt in replacement for this tranny...
http://www.bowtieoverdrives.com/cata....php?ITEMID=62
Just to be clear...is the 200r4 tranny the same tranny as the 2004r? The crossmember in the link above is for a 2004r, not a 200r4...are they the same?
http://www.bowtieoverdrives.com/cata....php?ITEMID=62
Just to be clear...is the 200r4 tranny the same tranny as the 2004r? The crossmember in the link above is for a 2004r, not a 200r4...are they the same?
Thread Starter
Safety Car
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
Which vehicles at the pick'n pull should I be looking at for the 200r4 tranny? Anything specific? The reason I ask is because of the way some of them operate. If you tell them you want a steering wheel for a 1976 corvette, they will charge you $40. If you tell them you want a steering wheel for a 76 vega, they will charge you $20 - the funny thing is, both steering wheels are the same! So which vehicle should I look for?
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Which vehicles at the pick'n pull should I be looking at for the 200r4 tranny? Anything specific? The reason I ask is because of the way some of them operate. If you tell them you want a steering wheel for a 1976 corvette, they will charge you $40. If you tell them you want a steering wheel for a 76 vega, they will charge you $20 - the funny thing is, both steering wheels are the same! So which vehicle should I look for?
don't remember off the top of my head tons of info in the turbo buick forumOh i Want a vega wheel for my 77p/u
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Thread Starter
Safety Car
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
VanSteel only carries the 3.73 ring/pinion and not the 3.70 ring and pinion...so I'll be getting the 3.73 gear ratio and a 200r4 tranny (has the overdrive to reduce the RPMS of the new gear). I just hope I don't regret the swap. I'll be using the largest tires which will fit on the original trailing arms without modifications, without modification of the hypercoil leaf spring, and also without the use of flares on the body. This thing is gonna be sick! I'm so excited, I can't wait to get this thing on the road
Melting Slicks
Joined: Jul 2005
Posts: 2,545
Likes: 3
From: 406ci SB, AFR 180 Heads - 490 HP @5,600 RPM 529 lb-ft @ 4,100 RPM
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
Are they sure that ring & pinion is for a C3? The C3 spicers use the 3.70. The 12 bolt spicers in the SS's like the Chevelles and such used the 3.73. The Dana series in the C4's might use a 3.73 gear, but I have never heard of a 3.73 in a C3 vette.
Also, I did a quick search and here is a list of CF members that have the 200 4r.
rayluka, rosslato, andylmusic76, 682XLR8, redwingvette
Also, I did a quick search and here is a list of CF members that have the 200 4r.
rayluka, rosslato, andylmusic76, 682XLR8, redwingvette
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
I just checked... Make sure the gear is 3.70. The 3.73 was used in the C4's Dana 36 series from 1984-1996.
This is what you need:
http://ecklers.com/product.asp?pf_id=A7161&dept_id=1863
This is what you don't need:
http://www.ecklers.com/product.asp?p...dept%5Fid=1863
This is what you need:
http://ecklers.com/product.asp?pf_id=A7161&dept_id=1863
This is what you don't need:
http://www.ecklers.com/product.asp?p...dept%5Fid=1863
Thread Starter
Safety Car
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
Here is a message from Gary (gtr1999). He sold me a brand new Eaton posi case (just the casing). I asked him which ring and pinion ratios would fit on the casing he sold me...this is what he said.
"Yes 3 series case will fit 273 308 336 355 370 373 390 and some 411 433's"
The VanSteel website says "63-79 - 3:73 Ring & Pinion", so it should work. I'll verify that with them sometime next week.
"Yes 3 series case will fit 273 308 336 355 370 373 390 and some 411 433's"
The VanSteel website says "63-79 - 3:73 Ring & Pinion", so it should work. I'll verify that with them sometime next week.
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Here is a message from Gary (gtr1999). He sold me a brand new Eaton posi case (just the casing). I asked him which ring and pinion ratios would fit on the casing he sold me...this is what he said.
"Yes 3 series case will fit 273 308 336 355 370 373 390 and some 411 433's"
The VanSteel website says "63-79 - 3:73 Ring & Pinion", so it should work. I'll verify that with them sometime next week.
"Yes 3 series case will fit 273 308 336 355 370 373 390 and some 411 433's"
The VanSteel website says "63-79 - 3:73 Ring & Pinion", so it should work. I'll verify that with them sometime next week.
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
Here is a message from Gary (gtr1999). He sold me a brand new Eaton posi case (just the casing). I asked him which ring and pinion ratios would fit on the casing he sold me...this is what he said.
"Yes 3 series case will fit 273 308 336 355 370 373 390 and some 411 433's"
The VanSteel website says "63-79 - 3:73 Ring & Pinion", so it should work. I'll verify that with them sometime next week.
"Yes 3 series case will fit 273 308 336 355 370 373 390 and some 411 433's"
The VanSteel website says "63-79 - 3:73 Ring & Pinion", so it should work. I'll verify that with them sometime next week.
Tech Contributor
Joined: Aug 1999
Posts: 15,164
Likes: 3,966
From: Connecticut, USA
The only avail C2 C3 373 gear is made for Tom's by US Gear. I don't know of any other. Vendors sell tom's gears so if they are selling a 373 is should be Tom's. I believe Dan sells Tom's gears. There is no problem installing the 370 or 373 gear on the 3 series case. Well check that, the gear will fit - there could be a problem if they're not setup correct.
Jeremy did you finally get the case? We were hit with a good size snow storm so it may have delayed shipping a day.
Jeremy did you finally get the case? We were hit with a good size snow storm so it may have delayed shipping a day.
Thread Starter
Safety Car
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
Not yet Gary. I'll call my buddy after work today, I left you some pm's on digital corvettes regarding the status of it. So will the 373 gear from VanSteel fit on the posi case you sold me
?
?