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Need Gear Help

9

93dream

Guest
I need help finding 3.73 gears for my 93 LT-1. I have an all stock driveline so I was also wondering if 3.73's will fit. Does anyone have header advice?
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,237
Location
Hermosa Beach, CA
Corvette
1987 Z51 Silver Coupe
Welcome To The Corvette Action Center 93dream!

93dream said:
...was also wondering if 3.73's will fit.

:confused I don't understand the question, they fit in my '87. :cool

As for the header question, somebody will be along to help soon. ;)
 
9

93dream

Guest
It should have read, will 3.73's fit into the casing of a stock automatic LT-1. Oops! I think I was excited. It was my first post here.
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,237
Location
Hermosa Beach, CA
Corvette
1987 Z51 Silver Coupe
This is from T.P.I.S.:
When replacing 3.73 and numerically lower ratio gear sets with a 3.92 or higher gear, the carrier must be changed.



Ring Gear Dia. 8-1/2" Pinion Shaft Dia. 1.375"
10 Ring Gear Bolts Pinion Splines 26
3/8" x 24 RH Thds 10 Bolt Cover


Gear Ratio to Option Number Correlation

This information is on your vehicle build sheet - typically located in the glove box or storage compartment. See next page for more information.

Dana 36 axles Dana 44 axles
Ratio RPO Ratio RPO
2.59 GM1 3.07 G87
2.73 GU2 3.33 GT7
3.07 G44 3.45 GM3
3.31 GW4 3.54 GH0

Hope it helps you, you have a Dana 36 it appears.

_Ken
 
9

93dream

Guest
Do you think I should go through Mid-America and get the whole casing/gear setup for around $1400 or have you seen cheaper?
 

Ken

Gone but not forgotten
Joined
Jan 30, 2001
Messages
8,237
Location
Hermosa Beach, CA
Corvette
1987 Z51 Silver Coupe
MAD is where I got my set-up Brian, but they use Charlie Smith of Charlie's Performance in Urbana, IL for their remanufactured units. You might want to call him directly at 278.2173 or 278.2175 (I don't know the area code) and maybe you'll strike a better deal. ;)

Be sure to tell him I sent ya! :upthumbs

_Ken
 

vms4evr

Well-known member
Joined
Jul 18, 2001
Messages
466
Location
Durham, NC
Corvette
2002 Flat Black Z06
93dream,
i'm going through this now. 3.54 or 3.75. I did find a gear set for the Dana 36 that will fit, made by Richmond. Here is what I have so far:

Vendor: Richmond Gears

Buy at: Summit
Price: $318.95 B/O
Part# RMG-4901101

This Richmond gear set fits the Dana 36 late model Corvette rear-end. It has a ratio of 3.75:1 and fits 2.73:1 and numerically lower carrier.

Buy at: Jegs
84-94 Corvette w/2.87-Lower Carrier
Part: 836-49-0110-1 Ratio: 3.75 Teeth: 45-12 $ 318.99
Part: 836-49-0143-1 Ratio: 3.54 Teeth: 46-13 $ 318.99

Graham
 
9

93dream

Guest
Thanks for the help I will give Charlie a call. I appreciate the help from both of ya'!
 

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