The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-28-2003, 11:07 PM   #1
gldevall
Registered User
 
gldevall's Avatar
 
Join Date: Mar 2003
Location: Walker, LA
Posts: 2,925
new gears and MPG

Well, just checked my mileage with the 3.73's and 400 trans. Even gettin' on it a good bit, still got 11.61 MPG
__________________
Gary -1986 SWB: lowered 4/6, SOLD!!!
-Best 1/4 mile: 14.51 @ 91.01 MPH
-2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!!
-2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels
gldevall is offline   Reply With Quote
Old 08-29-2003, 03:31 AM   #2
Poonman86
Registered User
 
Join Date: May 2000
Location: Houston,Texas
Posts: 123
wish mine was that good right now
Poonman86 is offline   Reply With Quote
Old 08-29-2003, 11:16 AM   #3
low 84
Registered User
 
low 84's Avatar
 
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
what gears did you have in it originaly? how big of a seat of your pants difference is it?
__________________
'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

RIP
'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
low 84 is offline   Reply With Quote
Old 08-29-2003, 11:31 AM   #4
gldevall
Registered User
 
gldevall's Avatar
 
Join Date: Mar 2003
Location: Walker, LA
Posts: 2,925
I had 2.73 with open diff and changed to an Eaton posi unti with 3.73. The 1st couple of days I was kinda scared of it because there was that much difference in it. Now when I get on it and shift into 2nd it barks those 255/60's like a standard would. I can't wait to get back to the track and run it again...next weekend.
__________________
Gary -1986 SWB: lowered 4/6, SOLD!!!
-Best 1/4 mile: 14.51 @ 91.01 MPH
-2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!!
-2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels
gldevall is offline   Reply With Quote
Old 08-29-2003, 11:45 AM   #5
low 84
Registered User
 
low 84's Avatar
 
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
cool. i'm pretty sure i've got 2.73's now also. i can't decide wheter i want to go to 3.55's or 3.73's or if it would even matter that much betwen the two. i have to pay off the credit cards before i can even think about doing that though.
__________________
'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

RIP
'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
low 84 is offline   Reply With Quote
Old 08-29-2003, 11:47 AM   #6
cochino12
It followed me home?
 
cochino12's Avatar
 
Join Date: Mar 2003
Location: Yup
Posts: 5,751
which tranny do you have again? shift kit?
__________________
Adam

That's why they call it a shortcut Kyle, if it was easy it would just be the way.

86 c-10 SWB
85 CCSB
90 GMC K30 Crew SRW
1985 C30 Dually
cochino12 is offline   Reply With Quote
Old 08-29-2003, 12:04 PM   #7
gldevall
Registered User
 
gldevall's Avatar
 
Join Date: Mar 2003
Location: Walker, LA
Posts: 2,925
I have a 400 with a B&M shiftt the stage 2 (street/strip)
__________________
Gary -1986 SWB: lowered 4/6, SOLD!!!
-Best 1/4 mile: 14.51 @ 91.01 MPH
-2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!!
-2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels
gldevall is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:25 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com