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 Tire width and 4L60E transmission strain | Joined: Nov 2022 Posts: 16 Likes: 2 stranger | OP  stranger Joined: Nov 2022 Posts: 16 Likes: 2 | Time for some tires on my 93 G20 4.3 /4L60E. Stock size is 225/75R15, and alternative size is 235/75R15. Lots more options in the larger size, but should I be worried about putting extra undue strain on my transmission with the increase in width and diameter (0.6"). In addition, would all terrain tread lessen or worsen the strain?
Doesn't seem like a real significant increase, but I want to treat my 4L60E as nicely as possible... ; ) | | | Re: Tire width and 4L60E transmission strain | Joined: Jun 2010 Posts: 17,360 Likes: 265 | | Joined: Jun 2010 Posts: 17,360 Likes: 265 | The LE trannys are bullet proof Id be more worried with your 4.3 motor ... I went up 2 sizes in tires to mellow my 454 and the tranny doesnt mind at all ... no replacement for displacement ...
SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
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pjfroncz | | | Re: Tire width and 4L60E transmission strain | Joined: Nov 2022 Posts: 16 Likes: 2 stranger | | OP stranger Joined: Nov 2022 Posts: 16 Likes: 2 | Thanks frscke1! The ole 4.3... yet another thing I haven't considered... what about a 235/70R15? Little wider than stock, and just a touch less diameter. Still a risky move? | | | Re: Tire width and 4L60E transmission strain | Joined: Jun 2010 Posts: 17,360 Likes: 265 | | Joined: Jun 2010 Posts: 17,360 Likes: 265 |
SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
| | |  Re: Tire width and 4L60E transmission strain | Joined: Nov 2013 Posts: 1,889 Likes: 55 veteran | | veteran Joined: Nov 2013 Posts: 1,889 Likes: 55 | Thanks frscke1! The ole 4.3... yet another thing I haven't considered... what about a 235/70R15? Little wider than stock, and just a touch less diameter. Still a risky move? Welcome! That's a stock tire size in a 78. I run them on My 33 year old Dodge B250 with a 175 hp 5.2, and an A500 OD auto, with 145,000 miles on that drivetrain. I trashed a ujoint 2 winters ago having way too much fun in the snow, so I wouldn't worry too awful much about that drivetrain... lol
"Who New? Blue" 1990 Chevy G30 454 EXT Church Van, maternity division "DogVan" 1988 Dodge B250 "Cabin Cruiser" '94 Dodge B350 www.xplorermotorhome.com/Xplorer MH model 230 230 hp MPI 360 LA Wedgy OD auto Old vans are getting pricey! | | 2 members like this:
pjfroncz, frscke1 | | | Re: Tire width and 4L60E transmission strain | Joined: Aug 2020 Posts: 265 Likes: 27 enthusiast | | enthusiast Joined: Aug 2020 Posts: 265 Likes: 27 | I've got 255 70 15 on 7 inch wheels on my 90 G20.LWB. my speedo and GPS are right on | | 2 members like this:
pjfroncz, Wedgy | | |
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