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73-87chevytrucks.com
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4X4 vs. 2X4 engine mounts?
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Topic: 4X4 vs. 2X4 engine mounts? (Read 4656 times)
Stewart G Griffin
Senior Member
Posts: 3324
4X4 vs. 2X4 engine mounts?
«
on:
August 06, 2018, 03:16:51 am »
Are the engine and trans mounted differently in a 4x4 vs. 2x4?
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1967KaiserM715
Junior Member
Posts: 914
1985 GMC K1500 w/ 6.5 TD
Re: 4X4 vs. 2X4 engine mounts?
«
Reply #1 on:
August 08, 2018, 10:10:47 am »
The engine crossmembers are different, and depending on transmission, the transmission crossmembers is also different.
The actual mounts (rubber filled mounts) should otherwise be the same 2wd to 4wd.
Sent from my SM-S920L using Tapatalk
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Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35 1967 M715(not running)
1986 Chevy K30(under repair)
Irish_Alley
Tim
Senior Member
Posts: 13333
Family is not an important thing. It's everything.
Re: 4X4 vs. 2X4 engine mounts?
«
Reply #2 on:
August 08, 2018, 11:40:41 am »
afaik 2wds mount before the tail shaft (part of the transmission body), while 4x4 mounts by the adapter plate where the tail shaft would normally be. BUT the 4x4 trans use the same body as the 4x2, so you can convert one over
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
Stewart G Griffin
Senior Member
Posts: 3324
Re: 4X4 vs. 2X4 engine mounts?
«
Reply #3 on:
August 08, 2018, 02:36:13 pm »
But the engine itself is in the same position in a 4x4 as it would be if 4x2?
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zieg85
Global Moderator
Senior Member
Posts: 7600
Re: 4X4 vs. 2X4 engine mounts?
«
Reply #4 on:
August 08, 2018, 03:32:44 pm »
Quote from: Stewart G Griffin on August 08, 2018, 02:36:13 pm
But the engine itself is in the same position in a 4x4 as it would be if 4x2?
I haven't measured exactly however the distributor seems to be in about the same distance from the firewall so I have to assume they are the same or at least very close to the same
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Carl
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/
Irish_Alley
Tim
Senior Member
Posts: 13333
Family is not an important thing. It's everything.
Re: 4X4 vs. 2X4 engine mounts?
«
Reply #5 on:
August 09, 2018, 07:12:01 am »
im going with theyre the same also. as you know 2wd have a solid cross member while 4x4s only have perches but the top transmission bolts on the 2wd vs 4wd are still a pain to get to no matter when unless you have a body lift.
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
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4X4 vs. 2X4 engine mounts?