1971 LT-1 What is my axle ratio?

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04-09-2011, 11:33 PM

#21

vt65

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thanks Nowhere Man, guess that works, my car was built May 06/65...

Last edited by vt65; 04-10-2011 at 02:42 PM.

04-10-2011, 12:36 PM

#22

JohnZ

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Quote:

Originally Posted by Nowhere Man

AS=3.70.1 standard axle for a close ratio 4 speed and 327. 3 15 65 is march 15 1965

Actually, close-ratio or wide-ratio doesn't matter - both have 1:1 4th gear, same as 3rd for a 3-speed. The usage is just stated that way because the 3.70 was the standard ratio with the 350/365/375hp engines, all of which came with the close-ratio 4-speed (the 250 and 300hp engines ordered with 4-speeds came with the wide-ratio box).

04-10-2011, 01:16 PM

#23

vt65

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well my car is a P/G, so maybe it was ordered with the 3:70's, haven't got the #'s from the glide to verify if it is orig. yet, where do i look? Gonna start a new thread for that Q

Last edited by vt65; 04-10-2011 at 01:21 PM.

04-10-2011, 02:18 PM

#24

JohnZ

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Quote:

Originally Posted by vt65

well my car is a P/G, so maybe it was ordered with the 3:70's, haven't got the #'s from the glide to verify if it is orig. yet, where do i look? Gonna start a new thread for that Q

Powerglide came with a 3.36, with 3.08 as the economy option; higher (numerical) ratios than 3.36 weren't available with Powerglide.

04-10-2011, 02:45 PM

#25

vt65

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oh boy John, I didn't want to hear that! Bubba strikes again! ....

07-08-2011, 01:50 AM

#26

eagle275

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hey, not trying to hijack, but what would a 71 vert w/ 270hp base engine and TH400 tranny have as a standard rear-end? Thanx!

07-08-2011, 04:36 PM

#27

JohnZ

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Quote:

Originally Posted by eagle275

hey, not trying to hijack, but what would a 71 vert w/ 270hp base engine and TH400 tranny have as a standard rear-end? Thanx!

3.08 was standard, 3.36 was optional.

07-19-2017, 12:36 AM

#28

jst2gtby

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Quote:

Originally Posted by Nowhere Man

AS=3.70.1 standard axle for a close ratio 4 speed and 327. 3 15 65 is march 15 1965

wondering what mine has. LRW 174 E1. Thanks bud. By the way, where do you find the decoder for these letters and numbers? The Julian date I can figure out, but not the gear ratio itself.

07-19-2017, 08:28 PM

#29

vettebuyer6369

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Quote:

Originally Posted by jst2gtby

wondering what mine has. LRW 174 E1. Thanks bud. By the way, where do you find the decoder for these letters and numbers? The Julian date I can figure out, but not the gear ratio itself.

Start a new thread and ask your question. You are answering a 6 year old post in a thread that should have been in a different section anyway.

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